diff --git a/.github/workflows/deploy_hosted.yml b/.github/workflows/deploy_hosted.yml
new file mode 100644
index 000000000..ca25e6aa8
--- /dev/null
+++ b/.github/workflows/deploy_hosted.yml
@@ -0,0 +1,55 @@
+name: Deploy develop on dev.mapcomplete.org
+on:
+  push
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: "20"
+          cache: "npm"
+          cache-dependency-path: package-lock.json
+
+      - name: install deps
+        run: npm ci
+        shell: bash
+
+      - name: create generated dir
+        run: mkdir ./assets/generated
+        shell: bash
+
+      - name: create dependencies
+        run: npm run generate:licenses; npm run generate:images; npm run generate:charging-stations; npm run generate:service-worker; npm run download:editor-layer-index
+        shell: bash
+
+      - name: sync translations
+        run: npm run generate:translations
+        shell: bash
+
+      - name: run tests
+        run: |
+          pwd
+          ls
+          npm run test
+        shell: bash
+
+      - name: Prepare deploy
+        run: npm run prepare-deploy
+        shell: bash
+
+
+
+      - name: Upload artefact
+        env:
+          SSH_KEY: ${{ secrets.HETZNER_KEY }}
+        run: |
+          mkdir .ssh
+          echo $SSH_KEY > .ssh/id_ed25519
+          scp dist/* pietervdvn@hosted.mapcomplete.org:/root/public/${{ github.ref_name }}
+          
+
diff --git a/assets/layers/questions/questions.json b/assets/layers/questions/questions.json
index 964643eac..f011e4cda 100644
--- a/assets/layers/questions/questions.json
+++ b/assets/layers/questions/questions.json
@@ -3232,6 +3232,18 @@
           }
         }
       ]
+    },
+    {
+      "id": "name",
+      "question":{
+        "en": "What is the name of this place?"
+      },
+      "render": {
+        "*": "<b>{name}</b>"
+      },
+      "freeform": {
+        "key": "name"
+      }
     }
   ],
   "allowMove": false,
@@ -3247,4 +3259,4 @@
       }
     }
   ]
-}
\ No newline at end of file
+}
diff --git a/assets/layers/usertouched/usertouched.json b/assets/layers/usertouched/usertouched.json
new file mode 100644
index 000000000..f22e5e104
--- /dev/null
+++ b/assets/layers/usertouched/usertouched.json
@@ -0,0 +1,70 @@
+{
+  "id": "usertouched",
+  "description": {
+    "en": "Special layer showing all items which were changed by a certain user"
+  },
+  "name": {
+    "en": "Changed by user"
+  },
+  "title": {
+    "render": {
+      "en": "Changed by user"
+    }
+  },
+  "source": "special",
+  "tagRenderings": [
+    {
+      "id": "test",
+      "render": {
+        "en": "Changed by user"
+      }
+    },
+    "all_tags"
+  ],
+  "pointRendering": [
+    {
+      "location": [
+        "point",
+        "centroid"
+      ],
+      "iconSize": "15,15",
+      "marker": [
+        {
+          "icon": "circle",
+          "color": "#aaa"
+        },
+        {
+          "icon": "ring",
+          "color": "#000"
+        }
+      ]
+    }
+  ],
+  "lineRendering": [
+    {
+      "color": "black",
+      "width": 3,
+      "fillColor": "#00000000"
+    },
+    {
+      "color": "#cccccccc",
+      "width": {
+        "render": 0,
+        "mappings": [
+          {
+            "if": {
+              "or": [
+                "_geometry:type=Polygon",
+                "_geometry:type=MultiPolygon"
+              ]
+            },
+            "then": 20
+          }
+        ]
+      },
+      "offset": 15,
+      "fillColor": "#00000000"
+    }
+  ],
+  "allowMove": false
+}
diff --git a/assets/themes/inspector/inspector.json b/assets/themes/inspector/inspector.json
new file mode 100644
index 000000000..9a531f3d8
--- /dev/null
+++ b/assets/themes/inspector/inspector.json
@@ -0,0 +1,13 @@
+{
+  "id": "inspector",
+  "title": {
+    "en": "Inspect changes from a single user"
+  },
+  "description": {
+    "en": "A theme to inspect what a single user did in the past"
+  },
+  "icon": "./assets/svg/add.svg",
+  "layers": [
+    "usertouched"
+  ]
+}
diff --git a/assets/themes/mapcomplete-changes/mapcomplete-changes.json b/assets/themes/mapcomplete-changes/mapcomplete-changes.json
index f06464705..9cc62392c 100644
--- a/assets/themes/mapcomplete-changes/mapcomplete-changes.json
+++ b/assets/themes/mapcomplete-changes/mapcomplete-changes.json
@@ -4,26 +4,20 @@
     "en": "Changes made with MapComplete",
     "de": "Änderungen mit MapComplete",
     "cs": "Změny provedené pomocí MapComplete",
-    "es": "Cambios realizados con MapComplete",
-    "fr": "Modifications faites avec MapComplete",
-    "nl": "Wijzigingen gemaakt met MapComplete"
+    "es": "Cambios realizados con MapComplete"
   },
   "shortDescription": {
     "en": "Shows changes made by MapComplete",
     "de": "Zeigt die von MapComplete vorgenommenen Änderungen an",
     "cs": "Zobrazuje změny provedené nástrojem MapComplete",
-    "es": "Muestra los cambios realizados por MapComplete",
-    "fr": "Afficher les modifications faites avec MapComplete",
-    "nl": "Toont wijzigingen gemaakt met MapComplete"
+    "es": "Muestra los cambios realizados por MapComplete"
   },
   "description": {
     "en": "This maps shows all the changes made with MapComplete",
     "de": "Diese Karte zeigt alle mit MapComplete vorgenommenen Änderungen",
     "es": "Este mapa muestra todos los cambios realizados con MapComplete",
     "pl": "Ta mapa pokazuje wszystkie zmiany wprowadzone za pomocą MapComplete",
-    "cs": "Tyto mapy zobrazují všechny změny provedené pomocí MapComplete",
-    "fr": "Cette carte montre tous les changements effectués avec MapComplete",
-    "nl": "Deze kaarten tonen alle wijzigingen die zijn gemaakt met MapComplete"
+    "cs": "Tyto mapy zobrazují všechny změny provedené pomocí MapComplete"
   },
   "icon": "./assets/svg/logo.svg",
   "hideFromOverview": true,
@@ -36,10 +30,7 @@
       "name": {
         "en": "Changeset centers",
         "de": "Changeset-Zentren",
-        "es": "Centros de conjuntos de cambios",
-        "fr": "Centre du groupe de modifications",
-        "nl": "Changeset centra",
-        "cs": "Changeset centra"
+        "es": "Centros de conjuntos de cambios"
       },
       "minzoom": 0,
       "source": {
@@ -52,16 +43,14 @@
           "en": "Changeset for {theme}",
           "de": "Änderungssatz für {theme}",
           "cs": "Sada změn pro {theme}",
-          "es": "Conjunto de cambios para {theme}",
-          "nl": "Changeset voor {theme}"
+          "es": "Conjunto de cambios para {theme}"
         }
       },
       "description": {
         "en": "Shows all MapComplete changes",
         "de": "Zeigt alle MapComplete-Änderungen",
         "es": "Muestra todos los cambios de MapComplete",
-        "cs": "Zobrazí všechny změny MapComplete",
-        "nl": "Toon alle MapComplete-wijzigingen"
+        "cs": "Zobrazí všechny změny MapComplete"
       },
       "tagRenderings": [
         {
@@ -70,8 +59,7 @@
             "en": "Changeset <a href='https://openstreetmap.org/changeset/{id}' target='_blank'>{id}</a>",
             "de": "Änderungssatz <a href='https://openstreetmap.org/changeset/{id}' target='_blank'>{id}</a>",
             "cs": "Sada změn <a href='https://openstreetmap.org/changeset/{id}' target='_blank'>{id}</a>",
-            "es": "Conjunto de cambios <a href='https://openstreetmap.org/changeset/{id}' target='_blank'>{id}</a>",
-            "nl": "Changeset <a href='https://openstreetmap.org/changeset/{id}' target='_blank'>{id}</a>"
+            "es": "Conjunto de cambios <a href='https://openstreetmap.org/changeset/{id}' target='_blank'>{id}</a>"
           }
         },
         {
@@ -80,8 +68,7 @@
             "en": "What contributor did make this change?",
             "de": "Wer hat zu dieser Änderung beigetragen?",
             "cs": "Který přispěvatel provedl tuto změnu?",
-            "es": "¿Qué colaborador realizó este cambio?",
-            "nl": "Welke bijdrager maakte deze verandering?"
+            "es": "¿Qué colaborador realizó este cambio?"
           },
           "freeform": {
             "key": "user"
@@ -90,9 +77,7 @@
             "en": "Change made by <a href='https://openstreetmap.org/user/{user}' target='_blank'>{user}</a>",
             "de": "Änderung vorgenommen von <a href='https://openstreetmap.org/user/{user}' target='_blank'>{user}</a>",
             "cs": "Změna provedena uživatelem <a href='https://openstreetmap.org/user/{user}' target='_blank'>{user}</a>",
-            "es": "Cambio realizado por <a href='https://openstreetmap.org/user/{user}' target='_blank'>{user}</a>",
-            "fr": "Modification faite par <a href='https://openstreetmap.org/user/{user}' target='_blank'>{user}</a>",
-            "nl": "Wijziging aangebracht door <a href='https://openstreetmap.org/user/{user}' target='_blank'>{user}</a>"
+            "es": "Cambio realizado por <a href='https://openstreetmap.org/user/{user}' target='_blank'>{user}</a>"
           }
         },
         {
@@ -101,8 +86,7 @@
             "en": "What theme was used to make this change?",
             "de": "Welches Thema wurde für diese Änderung verwendet?",
             "cs": "Jaký motiv byl použit k provedení této změny?",
-            "es": "¿Qué tema se utilizó para realizar este cambio?",
-            "nl": "Welk thema werd gebruikt voor deze wijziging?"
+            "es": "¿Qué tema se utilizó para realizar este cambio?"
           },
           "freeform": {
             "key": "theme"
@@ -110,9 +94,7 @@
           "render": {
             "en": "Change with theme <a href='https://mapcomplete.org/{theme}'>{theme}</a>",
             "de": "Änderung mit Thema <a href='https://mapcomplete.org/{theme}'>{theme}</a>",
-            "es": "Cambio con el tema <a href='https://mapcomplete.org/{theme}'>{theme}</a>",
-            "nl": "Verander met thema <a href='https://mapcomplete.org/{theme}'>{theme}</a>",
-            "cs": "Změna pomocí tématu <a href='https://mapcomplete.org/{theme}'>{theme}</a>"
+            "es": "Cambio con el tema <a href='https://mapcomplete.org/{theme}'>{theme}</a>"
           }
         },
         {
@@ -124,15 +106,13 @@
             "en": "What locale (language) was this change made in?",
             "de": "In welcher Sprache (Locale) wurde diese Änderung vorgenommen?",
             "cs": "V jakém prostředí (jazyce) byla tato změna provedena?",
-            "es": "¿En qué configuración regional (idioma) se realizó este cambio?",
-            "nl": "In welke 'locale' (taal) is deze wijziging gemaakt?"
+            "es": "¿En qué configuración regional (idioma) se realizó este cambio?"
           },
           "render": {
             "en": "User locale is {locale}",
             "de": "Die Benutzersprache ist {locale}",
             "cs": "Uživatelské prostředí je {locale}",
-            "es": "Configuración regional del usuario es {locale}",
-            "nl": "De gebruikerstaal (locale) is {locale}"
+            "es": "Configuración regional del usuario es {locale}"
           }
         },
         {
@@ -141,15 +121,13 @@
             "en": "Change with with <a href='{host}'>{host}</a>",
             "de": "Änderung mit <a href='{host}'>{host}</a>",
             "cs": "Změnit pomocí <a href='{host}'>{host}</a>",
-            "es": "Cambio realizado con <a href='{host}'>{host}</a>",
-            "nl": "Gewijzigd met <a href='{host}'>{host}</a>"
+            "es": "Cambio realizado con <a href='{host}'>{host}</a>"
           },
           "question": {
             "en": "What host (website) was this change made with?",
             "de": "Bei welchem Host (Website) wurde diese Änderung vorgenommen?",
             "cs": "U jakého hostitele (webové stránky) byla tato změna provedena?",
-            "es": "¿Con qué anfitrión (sitio web) se realizó este cambio?",
-            "nl": "Met welke host (website) is deze wijziging gemaakt?"
+            "es": "¿Con qué anfitrión (sitio web) se realizó este cambio?"
           },
           "freeform": {
             "key": "host"
@@ -173,17 +151,13 @@
             "en": "What version of MapComplete was used to make this change?",
             "de": "Welche Version von MapComplete wurde verwendet, um diese Änderung vorzunehmen?",
             "cs": "Jaká verze aplikace MapComplete byla použita k provedení této změny?",
-            "es": "¿Qué versión de MapComplete se utilizó para realizar este cambio?",
-            "fr": "Quelle version de MapCompletee a été utilisée pour faire cette modification ?",
-            "nl": "Welke versie van MapComplete is gebruikt voor deze wijziging?"
+            "es": "¿Qué versión de MapComplete se utilizó para realizar este cambio?"
           },
           "render": {
             "en": "Made with {editor}",
             "de": "Erstellt mit {editor}",
             "cs": "Vytvořeno pomocí {editor}",
-            "es": "Hecho con {editor}",
-            "fr": "Fait avec {editor}",
-            "nl": "Gemaakt met {editor}"
+            "es": "Hecho con {editor}"
           },
           "freeform": {
             "key": "editor"
@@ -378,8 +352,8 @@
                     "then": "./assets/layers/entrance/entrance.svg"
                   },
                   {
-                    "if": "theme=insects",
-                    "then": "./assets/layers/insect_hotel/insect_hotel.svg"
+                    "if": "theme=inspector",
+                    "then": "./assets/svg/add.svg"
                   },
                   {
                     "if": "theme=items_with_image",
@@ -589,9 +563,7 @@
                 "de": "Themenname enthält {search}",
                 "es": "El nombre del tema contiene {search}",
                 "pl": "Nazwa tematu zawiera {search}",
-                "cs": "Název obsahuje {search}",
-                "fr": "Le nom du thème contient {search}",
-                "nl": "Themanaam bevat {search}"
+                "cs": "Název obsahuje {search}"
               }
             }
           ]
@@ -610,9 +582,7 @@
                 "en": "Themename does <b>not</b> contain {search}",
                 "de": "Themename enthält <b>nicht</b> {search}",
                 "es": "El nombre del tema <b>no</b> contiene {search}",
-                "cs": "Název motivu <b>neobsahuje</b> {search}",
-                "fr": "Le nom du thème <b>ne contient pas</b> {search}",
-                "nl": "Themanaam bevat <b>geen</b> {search}"
+                "cs": "Název motivu <b>neobsahuje</b> {search}"
               }
             }
           ]
@@ -631,9 +601,7 @@
                 "en": "Made by contributor {search}",
                 "de": "Erstellt von Mitwirkendem {search}",
                 "es": "Hecho por el colaborador {search}",
-                "cs": "Vytvořeno přispěvatelem {search}",
-                "fr": "Fait par le·a contributeur·trice {search}",
-                "nl": "Toegevoegd door {search}"
+                "cs": "Vytvořeno přispěvatelem {search}"
               }
             }
           ]
@@ -652,9 +620,7 @@
                 "en": "<b>Not</b> made by contributor {search}",
                 "de": "<b>Nicht</b> erstellt von Mitwirkendem {search}",
                 "es": "<b>No</b> hecho por el colaborador {search}",
-                "cs": "<b>Nevytvořeno</b> přispěvatelem {search}",
-                "fr": "<b>Pas</b> fait par le·a contributeur·trice {search}",
-                "nl": "<b>Niet</b> toegevoegd door {search}"
+                "cs": "<b>Nevytvořeno</b> přispěvatelem {search}"
               }
             }
           ]
@@ -674,9 +640,7 @@
                 "en": "Made before {search}",
                 "de": "Erstellt vor {search}",
                 "es": "Hecho antes de {search}",
-                "cs": "Vytvořeno před {search}",
-                "fr": "Fait avant {search}",
-                "nl": "Toegevoegd vóór {search}"
+                "cs": "Vytvořeno před {search}"
               }
             }
           ]
@@ -696,9 +660,7 @@
                 "en": "Made after {search}",
                 "de": "Erstellt nach {search}",
                 "es": "Hecho después de {search}",
-                "cs": "Vytvořeno po {search}",
-                "fr": "Fait après {search}",
-                "nl": "Toegevoegd na {search}"
+                "cs": "Vytvořeno po {search}"
               }
             }
           ]
@@ -717,9 +679,7 @@
                 "en": "User language (iso-code) {search}",
                 "de": "Benutzersprache (ISO-Code) {search}",
                 "es": "Idioma del usuario (código ISO) {search}",
-                "cs": "Jazyk uživatele (iso-kód) {search}",
-                "fr": "Langage utilisateur (code iso) {search}",
-                "nl": "Gebruikerstaal (iso-code) {search}"
+                "cs": "Jazyk uživatele (iso-kód) {search}"
               }
             }
           ]
@@ -738,8 +698,7 @@
                 "en": "Made with host {search}",
                 "de": "Erstellt mit Host {search}",
                 "cs": "Vytvořeno pomocí hostitele {search}",
-                "es": "Hecho con el anfitrión {search}",
-                "nl": "Gemaakt met {search}"
+                "es": "Hecho con el anfitrión {search}"
               }
             }
           ]
@@ -753,8 +712,7 @@
                 "en": "Changeset added at least one image",
                 "de": "Changeset hat mindestens ein Bild hinzugefügt",
                 "cs": "Sada změn přidala alespoň jeden obrázek",
-                "es": "El conjunto de cambios agregó al menos una imagen",
-                "nl": "Changeset voegde minstens één afbeelding toe"
+                "es": "El conjunto de cambios agregó al menos una imagen"
               }
             }
           ]
@@ -768,8 +726,7 @@
                 "en": "Exclude GRB theme",
                 "de": "GRB-Thema ausschließen",
                 "cs": "Vyloučit motiv GRB",
-                "es": "Excluir el tema GRB",
-                "nl": "GRB-thema uitsluiten"
+                "es": "Excluir el tema GRB"
               }
             }
           ]
@@ -783,8 +740,7 @@
                 "en": "Exclude etymology theme",
                 "de": "Etymologie-Thema ausschließen",
                 "es": "Excluir el tema de etimología",
-                "cs": "Vyloučit etymologii tématu",
-                "nl": "Thema etymologie uitsluiten"
+                "cs": "Vyloučit etymologii tématu"
               }
             }
           ]
@@ -802,9 +758,7 @@
               "en": "More statistics can be found <a href='https://github.com/pietervdvn/MapComplete/tree/develop/Docs/Tools/graphs' target='_blank'>here</a>",
               "de": "Weitere Statistiken findest du <a href='https://github.com/pietervdvn/MapComplete/tree/develop/Docs/Tools/graphs' target='_blank'>hier</a>",
               "cs": "Další statistiky najdete <a href='https://github.com/pietervdvn/MapComplete/tree/develop/Docs/Tools/graphs' target='_blank'>zde</a>",
-              "es": "Puedes encontrar más estadísticas <a href='https://github.com/pietervdvn/MapComplete/tree/develop/Docs/Tools/graphs' target='_blank'>aquí</a>",
-              "fr": "Plus de statistiques peuvent être trouvées <a href='https://github.com/pietervdvn/MapComplete/tree/develop/Docs/Tools/graphs' target='_blank'>ici</a>",
-              "nl": "Meer statistieken vind je <a href='https://github.com/pietervdvn/MapComplete/tree/develop/Docs/Tools/graphs' target='_blank'>hier</a>"
+              "es": "Puedes encontrar más estadísticas <a href='https://github.com/pietervdvn/MapComplete/tree/develop/Docs/Tools/graphs' target='_blank'>aquí</a>"
             }
           },
           {
diff --git a/langs/en.json b/langs/en.json
index a48943fc9..b3e98862d 100644
--- a/langs/en.json
+++ b/langs/en.json
@@ -675,6 +675,9 @@
         "pickTheme": "Pick a theme below to get started.",
         "title": "MapComplete"
     },
+    "inspector": {
+        "menu": "Inspect a contributor"
+    },
     "move": {
         "cancel": "Select a different reason",
         "cannotBeMoved": "This feature cannot be moved.",
diff --git a/scripts/generateLayerOverview.ts b/scripts/generateLayerOverview.ts
index 74cfa9a43..a61aab92b 100644
--- a/scripts/generateLayerOverview.ts
+++ b/scripts/generateLayerOverview.ts
@@ -643,11 +643,15 @@ class LayerOverviewUtils extends Script {
                     LayerOverviewUtils.layerPath +
                     sharedLayerPath.substring(sharedLayerPath.lastIndexOf("/"))
                 if (!forceReload && !this.shouldBeUpdated(sharedLayerPath, targetPath)) {
-                    const sharedLayer = JSON.parse(readFileSync(targetPath, "utf8"))
-                    sharedLayers.set(sharedLayer.id, sharedLayer)
-                    skippedLayers.push(sharedLayer.id)
-                    ScriptUtils.erasableLog("Loaded " + sharedLayer.id)
-                    continue
+                    try{
+                        const sharedLayer = JSON.parse(readFileSync(targetPath, "utf8"))
+                        sharedLayers.set(sharedLayer.id, sharedLayer)
+                        skippedLayers.push(sharedLayer.id)
+                        ScriptUtils.erasableLog("Loaded " + sharedLayer.id)
+                        continue
+                    }catch (e) {
+                        throw "Could not parse "+targetPath+" : "+e
+                    }
                 }
             }
 
diff --git a/src/Logic/ImageProviders/Panoramax.ts b/src/Logic/ImageProviders/Panoramax.ts
index c02667adc..c3ef71522 100644
--- a/src/Logic/ImageProviders/Panoramax.ts
+++ b/src/Logic/ImageProviders/Panoramax.ts
@@ -12,7 +12,7 @@ import Panoramax_bw from "../../assets/svg/Panoramax_bw.svelte"
 import Link from "../../UI/Base/Link"
 
 export default class PanoramaxImageProvider extends ImageProvider {
-    public static readonly singleton = new PanoramaxImageProvider()
+    public static readonly singleton: PanoramaxImageProvider = new PanoramaxImageProvider()
     private static readonly xyz = new PanoramaxXYZ()
     private static defaultPanoramax = new AuthorizedPanoramax(
         Constants.panoramax.url,
@@ -126,7 +126,11 @@ export default class PanoramaxImageProvider extends ImageProvider {
         if (!Panoramax.isId(value)) {
             return undefined
         }
-        return [await this.getInfoFor(value).then((r) => this.featureToImage(<any>r))]
+        return [await this.getInfo(value)]
+    }
+
+    public async getInfo(hash: string): Promise<ProvidedImage> {
+      return  await this.getInfoFor(hash).then((r) => this.featureToImage(<any>r))
     }
 
     getRelevantUrls(tags: Record<string, string>, prefixes: string[]): Store<ProvidedImage[]> {
diff --git a/src/Logic/Osm/OsmObjectDownloader.ts b/src/Logic/Osm/OsmObjectDownloader.ts
index d9afcace4..b0e9f9cec 100644
--- a/src/Logic/Osm/OsmObjectDownloader.ts
+++ b/src/Logic/Osm/OsmObjectDownloader.ts
@@ -14,7 +14,7 @@ export default class OsmObjectDownloader {
         readonly isUploading: Store<boolean>
     }
     private readonly backend: string
-    private historyCache = new Map<string, UIEventSource<OsmObject[]>>()
+    private historyCache = new Map<string, Promise<OsmObject[]>>()
 
     constructor(
         backend: string = "https://api.openstreetmap.org",
@@ -75,49 +75,51 @@ export default class OsmObjectDownloader {
         return await this.applyPendingChanges(obj)
     }
 
-    public DownloadHistory(id: NodeId): UIEventSource<OsmNode[]>
-
-    public DownloadHistory(id: WayId): UIEventSource<OsmWay[]>
-
-    public DownloadHistory(id: RelationId): UIEventSource<OsmRelation[]>
-
-    public DownloadHistory(id: OsmId): UIEventSource<OsmObject[]>
-
-    public DownloadHistory(id: string): UIEventSource<OsmObject[]> {
-        if (this.historyCache.has(id)) {
-            return this.historyCache.get(id)
-        }
+    private async _downloadHistoryUncached(id: string): Promise<OsmObject[]> {
         const splitted = id.split("/")
         const type = splitted[0]
         const idN = Number(splitted[1])
-        const src = new UIEventSource<OsmObject[]>([])
-        this.historyCache.set(id, src)
-        Utils.downloadJsonCached(
+        const data = await Utils.downloadJsonCached(
             `${this.backend}api/0.6/${type}/${idN}/history`,
             10 * 60 * 1000
-        ).then((data) => {
-            const elements: any[] = data.elements
-            const osmObjects: OsmObject[] = []
-            for (const element of elements) {
-                let osmObject: OsmObject = null
-                element.nodes = []
-                switch (type) {
-                    case "node":
-                        osmObject = new OsmNode(idN, element)
-                        break
-                    case "way":
-                        osmObject = new OsmWay(idN, element)
-                        break
-                    case "relation":
-                        osmObject = new OsmRelation(idN, element)
-                        break
-                }
-                osmObject?.SaveExtraData(element, [])
-                osmObjects.push(osmObject)
+        )
+        const elements: [] = data["elements"]
+        const osmObjects: OsmObject[] = []
+        for (const element of elements) {
+            let osmObject: OsmObject = null
+            element["nodes"] = []
+            switch (type) {
+                case "node":
+                    osmObject = new OsmNode(idN, element)
+                    break
+                case "way":
+                    osmObject = new OsmWay(idN, element)
+                    break
+                case "relation":
+                    osmObject = new OsmRelation(idN, element)
+                    break
             }
-            src.setData(osmObjects)
-        })
-        return src
+            osmObject?.SaveExtraData(element, [])
+            osmObjects.push(osmObject)
+        }
+        return osmObjects
+    }
+
+    public downloadHistory(id: NodeId): Promise<OsmNode[]>
+
+    public downloadHistory(id: WayId): Promise<OsmWay[]>
+
+    public downloadHistory(id: RelationId): Promise<OsmRelation[]>
+
+    public downloadHistory(id: OsmId): Promise<OsmObject[]>
+
+    public async downloadHistory(id: string): Promise<OsmObject[]> {
+        if (this.historyCache.has(id)) {
+            return this.historyCache.get(id)
+        }
+        const promise = this._downloadHistoryUncached(id)
+        this.historyCache.set(id, promise)
+        return promise
     }
 
     /**
diff --git a/src/Logic/Osm/Overpass.ts b/src/Logic/Osm/Overpass.ts
index 31f9b79cd..8c890db0b 100644
--- a/src/Logic/Osm/Overpass.ts
+++ b/src/Logic/Osm/Overpass.ts
@@ -26,7 +26,10 @@ export class Overpass {
     ) {
         this._timeout = timeout ?? new ImmutableStore<number>(90)
         this._interpreterUrl = interpreterUrl
-        const optimized = filter.optimize()
+        if (filter === undefined && !extraScripts) {
+            throw "Filter is undefined. This is probably a bug. Alternatively, pass an 'extraScript'"
+        }
+        const optimized = filter?.optimize()
         if (optimized === true || optimized === false) {
             throw "Invalid filter: optimizes to true of false"
         }
@@ -85,7 +88,7 @@ export class Overpass {
      * new Overpass(new Tag("key","value"), [], "").buildScript("{{bbox}}") // => `[out:json][timeout:90]{{bbox}};(nwr["key"="value"];);out body;out meta;>;out skel qt;`
      */
     public buildScript(bbox: string, postCall: string = "", pretty = false): string {
-        const filters = this._filter.asOverpass()
+        const filters = this._filter?.asOverpass() ?? []
         let filter = ""
         for (const filterOr of filters) {
             if (pretty) {
@@ -97,12 +100,13 @@ export class Overpass {
             }
         }
         for (const extraScript of this._extraScripts) {
-            filter += "(" + extraScript + ");"
+            filter += extraScript
         }
         return `[out:json][timeout:${this._timeout.data}]${bbox};(${filter});out body;${
             this._includeMeta ? "out meta;" : ""
         }>;out skel qt;`
     }
+
     /**
      * Constructs the actual script to execute on Overpass with geocoding
      * 'PostCall' can be used to set an extra range, see 'AsOverpassTurboLink'
diff --git a/src/Logic/UIEventSource.ts b/src/Logic/UIEventSource.ts
index 77cfe209f..43f40558f 100644
--- a/src/Logic/UIEventSource.ts
+++ b/src/Logic/UIEventSource.ts
@@ -727,6 +727,7 @@ export class UIEventSource<T> extends Store<T> implements Writable<T> {
     }
 
     /**
+     * Parse the number and round to the nearest int
      *
      * @param source
      * UIEventSource.asInt(new UIEventSource("123")).data // => 123
diff --git a/src/Models/Constants.ts b/src/Models/Constants.ts
index 3f6f5c943..916a1836c 100644
--- a/src/Models/Constants.ts
+++ b/src/Models/Constants.ts
@@ -41,6 +41,7 @@ export default class Constants {
         "usersettings",
         "icons",
         "filters",
+        "usertouched"
     ] as const
     /**
      * Layer IDs of layers which have special properties through built-in hooks
diff --git a/src/Models/ThemeConfig/ThemeConfig.ts b/src/Models/ThemeConfig/ThemeConfig.ts
index 9917007ea..d91b9525c 100644
--- a/src/Models/ThemeConfig/ThemeConfig.ts
+++ b/src/Models/ThemeConfig/ThemeConfig.ts
@@ -306,7 +306,7 @@ export default class ThemeConfig implements ThemeInformation {
         return { untranslated, total }
     }
 
-    public getMatchingLayer(tags: Record<string, string>): LayerConfig | undefined {
+    public getMatchingLayer(tags: Record<string, string>, blacklistLayers?: Set<string>): LayerConfig | undefined {
         if (tags === undefined) {
             return undefined
         }
@@ -314,6 +314,9 @@ export default class ThemeConfig implements ThemeInformation {
             return this.getLayer("current_view")
         }
         for (const layer of this.layers) {
+            if(blacklistLayers?.has(layer.id)){
+                continue
+            }
             if (!layer.source) {
                 if (layer.isShown?.matchesProperties(tags)) {
                     return layer
diff --git a/src/Models/ThemeViewState.ts b/src/Models/ThemeViewState.ts
index ed077ac27..8fece162b 100644
--- a/src/Models/ThemeViewState.ts
+++ b/src/Models/ThemeViewState.ts
@@ -1061,7 +1061,7 @@ export default class ThemeViewState implements SpecialVisualizationState {
     /**
      * Searches the appropriate layer - will first try if a special layer matches; if not, a normal layer will be used by delegating to the theme
      */
-    public getMatchingLayer(properties: Record<string, string>) {
+    public getMatchingLayer(properties: Record<string, string>): LayerConfig | undefined {
         const id = properties.id
 
         if (id.startsWith("summary_")) {
diff --git a/src/UI/Base/SelectedElementPanel.svelte b/src/UI/Base/SelectedElementPanel.svelte
index 617801eb1..d570b741f 100644
--- a/src/UI/Base/SelectedElementPanel.svelte
+++ b/src/UI/Base/SelectedElementPanel.svelte
@@ -3,24 +3,15 @@
   import type { Feature } from "geojson"
   import SelectedElementView from "../BigComponents/SelectedElementView.svelte"
   import SelectedElementTitle from "../BigComponents/SelectedElementTitle.svelte"
-  import UserRelatedState from "../../Logic/State/UserRelatedState"
-  import { LastClickFeatureSource } from "../../Logic/FeatureSource/Sources/LastClickFeatureSource"
   import Loading from "./Loading.svelte"
   import { onDestroy } from "svelte"
-  import LayerConfig from "../../Models/ThemeConfig/LayerConfig"
-  import { GeocodingUtils } from "../../Logic/Search/GeocodingProvider"
-  import ThemeViewState from "../../Models/ThemeViewState"
 
   export let state: SpecialVisualizationState
   export let selected: Feature
   let tags = state.featureProperties.getStore(selected.properties.id)
 
   export let absolute = true
-  function getLayer(properties: Record<string, string>): LayerConfig {
-    return state.getMatchingLayer(properties)
-  }
-
-  let layer = getLayer(selected.properties)
+  let layer = state.getMatchingLayer(selected.properties)
 
   let stillMatches = tags.map(
     (tags) => !layer?.source?.osmTags || layer?.source?.osmTags?.matchesProperties(tags)
diff --git a/src/UI/BigComponents/MenuDrawer.svelte b/src/UI/BigComponents/MenuDrawer.svelte
index a78388db2..3017462dd 100644
--- a/src/UI/BigComponents/MenuDrawer.svelte
+++ b/src/UI/BigComponents/MenuDrawer.svelte
@@ -279,6 +279,11 @@
       </Page>
     </div>
 
+    <a class="flex" href={window.location.protocol + "//" + window.location.host + "/inspector.html"}>
+      <MagnifyingGlassCircle class="mr-2 h-6 w-6" />
+      <Tr t={Translations.t.inspector.menu} />
+    </a>
+
     <a class="flex" href="https://github.com/pietervdvn/MapComplete/" target="_blank">
       <Github class="h-6 w-6" />
       <Tr t={Translations.t.general.attribution.gotoSourceCode} />
diff --git a/src/UI/BigComponents/SelectedElementTitle.svelte b/src/UI/BigComponents/SelectedElementTitle.svelte
index 898f0437b..4a759362f 100644
--- a/src/UI/BigComponents/SelectedElementTitle.svelte
+++ b/src/UI/BigComponents/SelectedElementTitle.svelte
@@ -1,23 +1,21 @@
 <script lang="ts">
   import type { Feature } from "geojson"
-  import { Store, UIEventSource } from "../../Logic/UIEventSource"
+  import { ImmutableStore, Store, UIEventSource } from "../../Logic/UIEventSource"
   import LayerConfig from "../../Models/ThemeConfig/LayerConfig"
   import type { SpecialVisualizationState } from "../SpecialVisualization"
   import TagRenderingAnswer from "../Popup/TagRendering/TagRenderingAnswer.svelte"
   import Translations from "../i18n/Translations"
   import Tr from "../Base/Tr.svelte"
-  import { XCircleIcon } from "@rgossiaux/svelte-heroicons/solid"
-  import { ariaLabel } from "../../Utils/ariaLabel"
   import { CloseButton } from "flowbite-svelte"
 
   export let state: SpecialVisualizationState
   export let layer: LayerConfig
   export let selectedElement: Feature
-  let tags: UIEventSource<Record<string, string>> = state.featureProperties.getStore(
+  let tags: UIEventSource<Record<string, string>> = state?.featureProperties?.getStore(
     selectedElement.properties.id
   )
   $: {
-    tags = state.featureProperties.getStore(selectedElement.properties.id)
+    tags = state?.featureProperties?.getStore(selectedElement.properties.id)
   }
 
   let isTesting = state.featureSwitchIsTesting
diff --git a/src/UI/History/AggregateImages.svelte b/src/UI/History/AggregateImages.svelte
new file mode 100644
index 000000000..78dda9385
--- /dev/null
+++ b/src/UI/History/AggregateImages.svelte
@@ -0,0 +1,46 @@
+<script lang="ts">
+  import { Store, UIEventSource } from "../../Logic/UIEventSource"
+  import { HistoryUtils } from "./HistoryUtils"
+  import type { Feature } from "geojson"
+  import OsmObjectDownloader from "../../Logic/Osm/OsmObjectDownloader"
+  import { OsmObject } from "../../Logic/Osm/OsmObject"
+  import Loading from "../Base/Loading.svelte"
+  import AttributedPanoramaxImage from "./AttributedPanoramaxImage.svelte"
+
+  export let onlyShowUsername: string[]
+  export let features: Feature[]
+
+  const downloader = new OsmObjectDownloader()
+  let allHistories: UIEventSource<OsmObject[][]> = UIEventSource.FromPromise(
+    Promise.all(features.map(f => downloader.downloadHistory(f.properties.id)))
+  )
+  let imageKeys = new Set(...["panoramax", "image:streetsign", "image:menu"].map(k => {
+    const result: string[] = [k]
+    for (let i = 0; i < 10; i++) {
+      result.push(k + ":" + i)
+    }
+    return result
+  }))
+  let usernamesSet = new Set(onlyShowUsername)
+  let allDiffs: Store<{
+    key: string;
+    value?: string;
+    oldValue?: string
+  }[]> = allHistories.mapD(histories => HistoryUtils.fullHistoryDiff(histories, usernamesSet))
+
+  let addedImages = allDiffs.mapD(diffs => [].concat(...diffs.filter(({ key }) => imageKeys.has(key))))
+
+</script>
+{#if $allDiffs === undefined}
+  <Loading />
+{:else if $addedImages.length === 0}
+  No images added by this contributor
+{:else}
+  <div class="flex">
+    {#each $addedImages as imgDiff}
+      <div class="w-48 h-48">
+        <AttributedPanoramaxImage hash={imgDiff.value} />
+      </div>
+    {/each}
+  </div>
+{/if}
diff --git a/src/UI/History/AggregateView.svelte b/src/UI/History/AggregateView.svelte
new file mode 100644
index 000000000..22bd1d822
--- /dev/null
+++ b/src/UI/History/AggregateView.svelte
@@ -0,0 +1,105 @@
+<script lang="ts">
+  import type { Feature } from "geojson"
+  import { Store, UIEventSource } from "../../Logic/UIEventSource"
+  import OsmObjectDownloader from "../../Logic/Osm/OsmObjectDownloader"
+  import { OsmObject } from "../../Logic/Osm/OsmObject"
+  import Loading from "../Base/Loading.svelte"
+  import { HistoryUtils } from "./HistoryUtils"
+  import * as shared_questions from "../../assets/generated/layers/questions.json"
+  import TagRenderingConfig from "../../Models/ThemeConfig/TagRenderingConfig"
+  import Tr from "../Base/Tr.svelte"
+  import AccordionSingle from "../Flowbite/AccordionSingle.svelte"
+  import Translations from "../i18n/Translations"
+
+  export let onlyShowUsername: string[]
+  export let features: Feature[]
+
+  let usernames = new Set(onlyShowUsername)
+
+  const downloader = new OsmObjectDownloader()
+  let allHistories: UIEventSource<OsmObject[][]> = UIEventSource.FromPromise(
+    Promise.all(features.map(f => downloader.downloadHistory(f.properties.id)))
+  )
+  let allDiffs: Store<{
+    key: string;
+    value?: string;
+    oldValue?: string
+  }[]> = allHistories.mapD(histories => HistoryUtils.fullHistoryDiff(histories, usernames))
+
+  const trs = shared_questions.tagRenderings.map(tr => new TagRenderingConfig(tr))
+
+  function detectQuestion(key: string): TagRenderingConfig {
+    return trs.find(tr => tr.freeform?.key === key)
+  }
+
+  const mergedCount: Store<{
+    key: string;
+    tr: TagRenderingConfig;
+    count: number;
+    values: { value: string; count: number }[]
+  }[]> = allDiffs.mapD(allDiffs => {
+    const keyCounts = new Map<string, Map<string, number>>()
+    for (const diff of allDiffs) {
+      const k = diff.key
+      if (!keyCounts.has(k)) {
+        keyCounts.set(k, new Map<string, number>())
+      }
+      const valueCounts = keyCounts.get(k)
+      const v = diff.value ?? ""
+      valueCounts.set(v, 1 + (valueCounts.get(v) ?? 0))
+    }
+
+    const perKey: {
+      key: string, tr: TagRenderingConfig, count: number, values:
+        { value: string, count: number }[]
+    }[] = []
+    keyCounts.forEach((values, key) => {
+      const keyTotal: { value: string, count: number }[] = []
+      values.forEach((count, value) => {
+        keyTotal.push({ value, count })
+      })
+      let countForKey = 0
+      for (const { count } of keyTotal) {
+        countForKey += count
+      }
+      keyTotal.sort((a, b) => b.count - a.count)
+      const tr = detectQuestion(key)
+      perKey.push({ count: countForKey, tr, key, values: keyTotal })
+    })
+    perKey.sort((a, b) => b.count - a.count)
+
+    return perKey
+  })
+
+  const t = Translations.t.inspector
+
+</script>
+
+{#if allHistories === undefined}
+  <Loading />
+{:else if $allDiffs !== undefined}
+  {#each $mergedCount as diff}
+    <h3>
+      {#if diff.tr}
+        <Tr t={diff.tr.question} />
+      {:else}
+        {diff.key}
+      {/if}
+    </h3>
+    <AccordionSingle>
+      <span slot="header">
+<Tr t={t.answeredCountTimes.Subs(diff)} />
+      </span>
+      <ul>
+        {#each diff.values as value}
+          <li>
+            <b>{value.value}</b>
+            {#if value.count > 1}
+              - {value.count}
+            {/if}
+          </li>
+        {/each}
+      </ul>
+    </AccordionSingle>
+  {/each}
+{/if}
diff --git a/src/UI/History/AttributedPanoramaxImage.svelte b/src/UI/History/AttributedPanoramaxImage.svelte
new file mode 100644
index 000000000..83463ada6
--- /dev/null
+++ b/src/UI/History/AttributedPanoramaxImage.svelte
@@ -0,0 +1,13 @@
+<script lang="ts">
+  import AttributedImage from "../Image/AttributedImage.svelte"
+  import PanoramaxImageProvider from "../../Logic/ImageProviders/Panoramax"
+  import { UIEventSource } from "../../Logic/UIEventSource"
+  import type { ProvidedImage } from "../../Logic/ImageProviders/ImageProvider"
+
+  export let hash: string
+  let image: UIEventSource<ProvidedImage> = UIEventSource.FromPromise(PanoramaxImageProvider.singleton.getInfo(hash))
+</script>
+
+{#if $image !== undefined}
+  <AttributedImage image={$image}></AttributedImage>
+{/if}
diff --git a/src/UI/History/History.svelte b/src/UI/History/History.svelte
new file mode 100644
index 000000000..5cfa6b908
--- /dev/null
+++ b/src/UI/History/History.svelte
@@ -0,0 +1,106 @@
+<script lang="ts">
+  /**
+   * Shows a history of the object which focuses on changes made by a certain username
+   */
+  import type { OsmId } from "../../Models/OsmFeature"
+  import OsmObjectDownloader from "../../Logic/Osm/OsmObjectDownloader"
+  import { UIEventSource } from "../../Logic/UIEventSource"
+  import Loading from "../Base/Loading.svelte"
+  import { HistoryUtils } from "./HistoryUtils"
+  import ToSvelte from "../Base/ToSvelte.svelte"
+  import Tr from "../Base/Tr.svelte"
+  import Translations from "../i18n/Translations"
+
+  export let onlyShowChangesBy: string[]
+  export let id: OsmId
+
+  let usernames = new Set(onlyShowChangesBy)
+  let fullHistory = UIEventSource.FromPromise(new OsmObjectDownloader().downloadHistory(id))
+
+  let partOfLayer = fullHistory.mapD(history => history.map(step => ({
+    step,
+    layer: HistoryUtils.determineLayer(step.tags)
+  })))
+  let filteredHistory = partOfLayer.mapD(history =>
+    history.filter(({ step }) => {
+      if (usernames.size == 0) {
+        return true
+      }
+      console.log("Checking if ", step.tags["_last_edit:contributor"],"is contained in", onlyShowChangesBy)
+      return usernames.has(step.tags["_last_edit:contributor"])
+
+    }).map(({ step, layer }) => {
+      const diff = HistoryUtils.tagHistoryDiff(step, fullHistory.data)
+      return { step, layer, diff }
+    }))
+
+  let lastStep = filteredHistory.mapD(history => history.at(-1))
+  let allGeometry = filteredHistory.mapD(all => !all.some(x => x.diff.length > 0))
+  /**
+   * These layers are only shown if there are tag changes as well
+   */
+  const ignoreLayersIfNoChanges: ReadonlySet<string> = new Set(["walls_and_buildings"])
+  const t = Translations.t.inspector.previousContributors
+
+</script>
+
+{#if !$allGeometry || !ignoreLayersIfNoChanges.has($lastStep?.layer?.id)}
+  {#if $lastStep?.layer}
+    <a href={"https://openstreetmap.org/" + $lastStep.step.tags.id} target="_blank">
+      <h3 class="flex items-center gap-x-2">
+        <div class="w-8 h-8 shrink-0 inline-block">
+          <ToSvelte construct={$lastStep.layer?.defaultIcon($lastStep.step.tags)} />
+        </div>
+        <Tr t={$lastStep.layer?.title?.GetRenderValue($lastStep.step.tags)?.Subs($lastStep.step.tags)} />
+      </h3>
+    </a>
+  {/if}
+
+  {#if !$filteredHistory}
+    <Loading>Loading history...</Loading>
+  {:else if $filteredHistory.length === 0}
+    <Tr t={t.onlyGeometry} />
+  {:else}
+    <table class="w-full m-1">
+      {#each $filteredHistory as { step, layer }}
+
+        {#if step.version === 1}
+          <tr>
+            <td colspan="3">
+              <h3>
+                <Tr t={t.createdBy.Subs({contributor: step.tags["_last_edit:contributor"]})} />
+              </h3>
+            </td>
+          </tr>
+        {/if}
+        {#if HistoryUtils.tagHistoryDiff(step, $fullHistory).length === 0}
+          <tr>
+            <td class="font-bold justify-center flex w-full" colspan="3">
+              <Tr t={t.onlyGeometry} />
+            </td>
+          </tr>
+        {:else}
+          {#each HistoryUtils.tagHistoryDiff(step, $fullHistory) as diff}
+            <tr>
+              <td><a href={"https://osm.org/changeset/"+step.tags["_last_edit:changeset"]}
+                     target="_blank">{step.version}</a></td>
+              <td>{layer?.id ?? "Unknown layer"}</td>
+              {#if diff.oldValue === undefined}
+                <td>{diff.key}</td>
+                <td>{diff.value}</td>
+              {:else if diff.value === undefined }
+                <td>{diff.key}</td>
+                <td class="line-through"> {diff.value}</td>
+              {:else}
+                <td>{diff.key}</td>
+                <td><span class="line-through"> {diff.oldValue}</span> → {diff.value}</td>
+              {/if}
+
+
+            </tr>
+          {/each}
+        {/if}
+      {/each}
+    </table>
+  {/if}
+{/if}
diff --git a/src/UI/History/HistoryUtils.ts b/src/UI/History/HistoryUtils.ts
new file mode 100644
index 000000000..c85aaeff2
--- /dev/null
+++ b/src/UI/History/HistoryUtils.ts
@@ -0,0 +1,51 @@
+import * as all_layers from "../../assets/generated/themes/personal.json"
+import ThemeConfig from "../../Models/ThemeConfig/ThemeConfig"
+import { OsmObject } from "../../Logic/Osm/OsmObject"
+
+export class HistoryUtils {
+
+    public static readonly personalTheme = new ThemeConfig(<any> all_layers, true)
+    private static ignoredLayers = new Set<string>(["fixme"])
+    public static determineLayer(properties: Record<string, string>){
+        return this.personalTheme.getMatchingLayer(properties, this.ignoredLayers)
+    }
+
+    public static tagHistoryDiff(step: OsmObject, history: OsmObject[]): {
+        key: string,
+        value?: string,
+        oldValue?: string,
+        step: OsmObject
+    }[] {
+        const previous = history[step.version - 2]
+        if (!previous) {
+            return Object.keys(step.tags).filter(key => !key.startsWith("_") && key !== "id").map(key => ({
+                key, value: step.tags[key], step
+            }))
+        }
+        const previousTags = previous.tags
+        return Object.keys(step.tags).filter(key => !key.startsWith("_") )
+            .map(key => {
+                const value = step.tags[key]
+                const oldValue = previousTags[key]
+                return {
+                    key, value, oldValue, step
+                }
+            }).filter(ch => ch.oldValue !== ch.value)
+    }
+
+    public static fullHistoryDiff(histories: OsmObject[][], onlyShowUsername?: Set<string>){
+        const allDiffs: {key: string, oldValue?: string, value?: string}[] = [].concat(...histories.map(
+            history => {
+                const filtered = history.filter(step => !onlyShowUsername || onlyShowUsername?.has(step.tags["_last_edit:contributor"] ))
+                const diffs: {
+                    key: string;
+                    value?: string;
+                    oldValue?: string
+                }[][] = filtered.map(step => HistoryUtils.tagHistoryDiff(step, history))
+                return [].concat(...diffs)
+            }
+        ))
+        return allDiffs
+    }
+
+}
diff --git a/src/UI/History/PreviouslySpiedUsers.svelte b/src/UI/History/PreviouslySpiedUsers.svelte
new file mode 100644
index 000000000..4bb757b43
--- /dev/null
+++ b/src/UI/History/PreviouslySpiedUsers.svelte
@@ -0,0 +1,107 @@
+<script lang="ts">
+
+  import { UIEventSource } from "../../Logic/UIEventSource"
+  import { OsmConnection } from "../../Logic/Osm/OsmConnection"
+  import LoginToggle from "../Base/LoginToggle.svelte"
+  import { createEventDispatcher } from "svelte"
+  import { XCircleIcon } from "@babeard/svelte-heroicons/solid"
+  import AccordionSingle from "../Flowbite/AccordionSingle.svelte"
+  import Dropdown from "../Base/Dropdown.svelte"
+
+  export let osmConnection: OsmConnection
+  export let inspectedContributors: UIEventSource<{
+    name: string,
+    visitedTime: string,
+    label: string
+  }[]>
+  let dispatch = createEventDispatcher<{ selectUser: string }>()
+
+  let labels = UIEventSource.asObject<string[]>(osmConnection.getPreference("previously-spied-labels"), [])
+  let labelField = ""
+
+  function remove(user: string) {
+    inspectedContributors.set(inspectedContributors.data.filter(entry => entry.name !== user))
+  }
+
+  function addLabel() {
+    if (labels.data.indexOf(labelField) >= 0) {
+      return
+    }
+    labels.data.push(labelField)
+    labels.ping()
+    labelField = ""
+  }
+
+  function sort(key: string) {
+    console.log("Sorting on", key)
+    inspectedContributors.data.sort((a, b) => (a[key] ?? "").localeCompare(b[key] ?? ""))
+    inspectedContributors.ping()
+  }
+</script>
+
+<LoginToggle ignoreLoading state={{osmConnection}}>
+  <table class="w-full">
+    <tr>
+      <td>
+        <button class="as-link cursor-pointer" on:click={() => sort("name")}>
+          Contributor
+        </button>
+      </td>
+      <td>
+
+        <button class="as-link cursor-pointer" on:click={() => sort("visitedTime")}>
+          Visited time
+        </button>
+      </td>
+      <td>
+        <button class="as-link cursor-pointer" on:click={() => sort("label")}>Label</button>
+      </td>
+      <td>Remove</td>
+    </tr>
+    {#each $inspectedContributors as c}
+      <tr>
+        <td>
+          <button class="as-link" on:click={() => dispatch("selectUser", c.name)}>{c.name}</button>
+        </td>
+        <td>
+          {c.visitedTime}
+        </td>
+        <td>
+          <select bind:value={c.label} on:change={() => inspectedContributors.ping()}>
+            <option value={undefined}><i>No label</i></option>
+            {#each $labels as l}
+              <option value={l}>{l}</option>
+            {/each}
+          </select>
+        </td>
+        <td>
+          <XCircleIcon class="w-6 h-6" on:click={() => remove(c.name)} />
+        </td>
+      </tr>
+    {/each}
+  </table>
+
+  <AccordionSingle>
+
+    <div slot="header">Labels</div>
+    {#if $labels.length === 0}
+      No labels
+    {:else}
+      {#each $labels as label}
+        <div class="mx-2">{label}
+          <button class:disabled={!$inspectedContributors.some(c => c.label === label)} on:click={() => {dispatch("selectUser",
+        inspectedContributors.data.filter(c =>c.label === label).map(c => c .name).join(";")
+        )}}>See all changes for these users
+          </button>
+        </div>
+      {/each}
+    {/if}
+    <div class="interactive flex m-2 items-center gap-x-2 rounded-lg p-2">
+      <div class="shrink-0">Create a new label</div>
+      <input bind:value={labelField} type="text" />
+      <button on:click={() => addLabel()} class:disabled={!(labelField?.length > 0) } class="disabled shrink-0">Add
+        label
+      </button>
+    </div>
+  </AccordionSingle>
+</LoginToggle>
diff --git a/src/UI/Image/AttributedImage.svelte b/src/UI/Image/AttributedImage.svelte
index 02a871249..546de016d 100644
--- a/src/UI/Image/AttributedImage.svelte
+++ b/src/UI/Image/AttributedImage.svelte
@@ -28,22 +28,24 @@
   export let imgClass: string = undefined
   export let state: SpecialVisualizationState = undefined
   export let attributionFormat: "minimal" | "medium" | "large" = "medium"
-  export let previewedImage: UIEventSource<ProvidedImage>
+  export let previewedImage: UIEventSource<ProvidedImage> = undefined
   export let canZoom = previewedImage !== undefined
   let loaded = false
   let showBigPreview = new UIEventSource(false)
   onDestroy(
     showBigPreview.addCallbackAndRun((shown) => {
       if (!shown) {
-        previewedImage.set(undefined)
+        previewedImage?.set(undefined)
       }
     })
   )
+  if(previewedImage){
   onDestroy(
     previewedImage.addCallbackAndRun((previewedImage) => {
       showBigPreview.set(previewedImage?.id === image.id)
     })
   )
+  }
 
   function highlight(entered: boolean = true) {
     if (!entered) {
@@ -82,7 +84,7 @@
       class="normal-background"
       on:click={() => {
         console.log("Closing")
-        previewedImage.set(undefined)
+        previewedImage?.set(undefined)
       }}
     />
   </div>
@@ -124,7 +126,7 @@
       {#if canZoom && loaded}
         <div
           class="bg-black-transparent absolute right-0 top-0 rounded-bl-full"
-          on:click={() => previewedImage.set(image)}
+          on:click={() => previewedImage?.set(image)}
         >
           <MagnifyingGlassPlusIcon class="h-8 w-8 cursor-zoom-in pl-3 pb-3" color="white" />
         </div>
diff --git a/src/UI/InspectorGUI.svelte b/src/UI/InspectorGUI.svelte
new file mode 100644
index 000000000..ea4457688
--- /dev/null
+++ b/src/UI/InspectorGUI.svelte
@@ -0,0 +1,227 @@
+<script lang="ts">
+  import { UIEventSource } from "../Logic/UIEventSource"
+  import { QueryParameters } from "../Logic/Web/QueryParameters"
+  import ValidatedInput from "./InputElement/ValidatedInput.svelte"
+  import { Overpass } from "../Logic/Osm/Overpass"
+  import Constants from "../Models/Constants"
+  import MaplibreMap from "./Map/MaplibreMap.svelte"
+  import { MapLibreAdaptor } from "./Map/MapLibreAdaptor"
+  import { Map as MlMap } from "maplibre-gl"
+  import ShowDataLayer from "./Map/ShowDataLayer"
+  import * as inspector_theme from "../assets/generated/themes/inspector.json"
+
+  import StaticFeatureSource from "../Logic/FeatureSource/Sources/StaticFeatureSource"
+  import type { Feature } from "geojson"
+  import Loading from "./Base/Loading.svelte"
+  import { linear } from "svelte/easing"
+  import { Drawer } from "flowbite-svelte"
+  import ThemeConfig from "../Models/ThemeConfig/ThemeConfig"
+  import History from "./History/History.svelte"
+  import TitledPanel from "./Base/TitledPanel.svelte"
+  import { XCircleIcon } from "@babeard/svelte-heroicons/solid"
+  import { Utils } from "../Utils"
+  import AggregateView from "./History/AggregateView.svelte"
+  import { HistoryUtils } from "./History/HistoryUtils"
+  import AggregateImages from "./History/AggregateImages.svelte"
+  import Page from "./Base/Page.svelte"
+  import PreviouslySpiedUsers from "./History/PreviouslySpiedUsers.svelte"
+  import { OsmConnection } from "../Logic/Osm/OsmConnection"
+  import MagnifyingGlassCircle from "@babeard/svelte-heroicons/outline/MagnifyingGlassCircle"
+  import Translations from "./i18n/Translations"
+  import Tr from "./Base/Tr.svelte"
+
+  let username = QueryParameters.GetQueryParameter("user", undefined, "Inspect this user")
+  let step = new UIEventSource<"waiting" | "loading" | "done">("waiting")
+  let map = new UIEventSource<MlMap>(undefined)
+  let zoom = UIEventSource.asFloat(QueryParameters.GetQueryParameter("z", "0"))
+  let lat = UIEventSource.asFloat(QueryParameters.GetQueryParameter("lat", "0"))
+  let lon = UIEventSource.asFloat(QueryParameters.GetQueryParameter("lon", "0"))
+  let theme = new ThemeConfig(<any>inspector_theme, true)
+  let layer = theme.layers.find(l => l.id === "usertouched")
+  // Is this a dirty hack? Yes it is!
+  theme.getMatchingLayer = () => {
+    return layer
+  }
+  let loadingData = false
+  let selectedElement = new UIEventSource<Feature>(undefined)
+
+  let maplibremap: MapLibreAdaptor = new MapLibreAdaptor(map, {
+    zoom,
+    location: new UIEventSource<{ lon: number; lat: number }>({ lat: lat.data, lon: lon.data })
+  })
+  maplibremap.location.stabilized(500).addCallbackAndRunD(l => {
+    lat.set(l.lat)
+    lon.set(l.lon)
+  })
+
+  let allLayers = HistoryUtils.personalTheme.layers
+    let layersNoFixme = allLayers.filter(l => l.id !== "fixme")
+let fixme = allLayers.find(l => l.id === "fixme")
+  let featuresStore = new UIEventSource<Feature[]>([])
+  let features = new StaticFeatureSource(featuresStore)
+  ShowDataLayer.showMultipleLayers(map, features, [...layersNoFixme, fixme] , {
+    zoomToFeatures: true,
+    onClick: (f: Feature) => {
+      selectedElement.set(undefined)
+      Utils.waitFor(200).then(() => {
+        selectedElement.set(f)
+      })
+    }
+  })
+
+  let osmConnection = new OsmConnection()
+  let inspectedContributors: UIEventSource<{
+    name: string,
+    visitedTime: string,
+    label: string
+  }[]> = UIEventSource.asObject(
+    osmConnection.getPreference("spied-upon-users"), [])
+
+  async function load() {
+    const user = username.data
+    if(user.indexOf(";")<0){
+
+      const inspectedData = inspectedContributors.data
+      const previousEntry = inspectedData.find(e => e.name === user)
+      if (previousEntry) {
+        previousEntry.visitedTime = new Date().toISOString()
+      } else {
+        inspectedData.push({
+          label: undefined,
+          visitedTime: new Date().toISOString(),
+          name: user
+        })
+      }
+      inspectedContributors.ping()
+    }
+
+    step.setData("loading")
+    featuresStore.set([])
+    const overpass = new Overpass(undefined, user.split(";").map(user => "nw(user_touched:\"" + user + "\");"), Constants.defaultOverpassUrls[0])
+    if (!maplibremap.bounds.data) {
+      return
+    }
+    loadingData = true
+    const [data, date] = await overpass.queryGeoJson(maplibremap.bounds.data)
+    console.log("Overpass result:", data)
+    loadingData = false
+    console.log(data, date)
+    featuresStore.set(data.features)
+    console.log("Loaded", data.features.length)
+  }
+
+  map.addCallbackAndRunD(() => {
+    // when the map is loaded: attempt to load the user given via Queryparams
+    if (username.data) {
+      console.log("Current username is", username.data)
+      load()
+    }
+    return true
+  })
+
+  let mode: "map" | "table" | "aggregate" | "images" = "map"
+
+  let showPreviouslyVisited = new UIEventSource(true)
+const t = Translations.t.inspector
+</script>
+
+<div class="flex flex-col w-full h-full">
+
+  <div class="flex gap-x-2 items-center low-interaction p-2">
+    <MagnifyingGlassCircle class="w-12 h-12"/>
+    <h1 class="flex-shrink-0 m-0 mx-2">
+      <Tr t={t.title}/>
+    </h1>
+    <ValidatedInput type="string" value={username} on:submit={() => load()} />
+    {#if loadingData}
+      <Loading />
+    {:else}
+      <button class="primary" on:click={() => load()}>
+        <Tr t={t.load}/>
+      </button>
+    {/if}
+    <button on:click={() => showPreviouslyVisited.setData(true)}>
+     <Tr t={t.earlierInspected}/>
+    </button>
+    <a href="./index.html" class="button">
+      <Tr t={t.backToIndex}/>
+    </a>
+  </div>
+
+  <div class="flex">
+    <button class:primary={mode === "map"} on:click={() => mode = "map"}>
+      <Tr t={t.mapView}/>
+    </button>
+    <button class:primary={mode === "table"} on:click={() => mode = "table"}>
+      <Tr t={t.tableView}/>
+    </button>
+    <button class:primary={mode === "aggregate"} on:click={() => mode = "aggregate"}>
+      <Tr t={t.aggregateView}/>
+    </button>
+    <button class:primary={mode === "images"} on:click={() => mode = "images"}>
+      <Tr t={t.images}/>
+    </button>
+  </div>
+
+  {#if mode === "map"}
+    {#if $selectedElement !== undefined}
+      <!-- right modal with the selected element view -->
+      <Drawer
+        placement="right"
+        transitionType="fly"
+        activateClickOutside={false}
+        backdrop={false}
+        id="drawer-right"
+        width="w-full md:w-6/12 lg:w-5/12 xl:w-4/12"
+        rightOffset="inset-y-0 right-0"
+        transitionParams={{
+        x: 640,
+        duration: 0,
+        easing: linear,
+      }}
+        divClass="overflow-y-auto z-50 bg-white"
+        hidden={$selectedElement === undefined}
+        on:close={() => {
+        selectedElement.setData(undefined)
+      }}
+      >
+
+        <TitledPanel>
+          <div slot="title" class="flex justify-between">
+
+            <a target="_blank" rel="noopener"
+               href={"https://osm.org/"+$selectedElement.properties.id}>{$selectedElement.properties.id}</a>
+            <XCircleIcon class="w-6 h-6" on:click={() => selectedElement.set(undefined)} />
+          </div>
+
+          <History onlyShowChangesBy={$username} id={$selectedElement.properties.id}></History>
+        </TitledPanel>
+      </Drawer>
+    {/if}
+
+    <div class="flex-grow overflow-hidden m-1 rounded-xl">
+      <MaplibreMap map={map} mapProperties={maplibremap} autorecovery={true} />
+    </div>
+  {:else if mode === "table"}
+    <div class="m-2 h-full overflow-y-auto">
+      {#each $featuresStore as f}
+        <History onlyShowChangesBy={$username?.split(";")} id={f.properties.id} />
+      {/each}
+    </div>
+  {:else if mode === "aggregate"}
+    <div class="m-2 h-full overflow-y-auto">
+      <AggregateView features={$featuresStore} onlyShowUsername={$username?.split(";")} />
+    </div>
+  {:else if mode === "images"}
+    <div class="m-2 h-full overflow-y-auto">
+      <AggregateImages features={$featuresStore} onlyShowUsername={$username?.split(";")} />
+    </div>
+  {/if}
+</div>
+
+<Page shown={showPreviouslyVisited}>
+  <div slot="header">Earlier inspected constributors</div>
+  <PreviouslySpiedUsers {osmConnection} {inspectedContributors} on:selectUser={(e) => {
+    username.set(e.detail); load();showPreviouslyVisited.set(false)
+  }}  />
+</Page>
diff --git a/src/UI/InspectorGUI.ts b/src/UI/InspectorGUI.ts
new file mode 100644
index 000000000..d26f12987
--- /dev/null
+++ b/src/UI/InspectorGUI.ts
@@ -0,0 +1,5 @@
+import InspectorGUI from "./InspectorGUI.svelte"
+
+new InspectorGUI({
+    target: document.getElementById("main"),
+})
diff --git a/src/UI/Popup/DeleteFlow/DeleteFlowState.ts b/src/UI/Popup/DeleteFlow/DeleteFlowState.ts
index 9bab13c12..97bd82876 100644
--- a/src/UI/Popup/DeleteFlow/DeleteFlowState.ts
+++ b/src/UI/Popup/DeleteFlow/DeleteFlowState.ts
@@ -97,7 +97,7 @@ export class DeleteFlowState {
                 if (allByMyself.data === null && useTheInternet) {
                     // We kickoff the download here as it hasn't yet been downloaded. Note that this is mapped onto 'all by myself' above
                     const hist = this.objectDownloader
-                        .DownloadHistory(id)
+                        .downloadHistory(id)
                         .map((versions) =>
                             versions.map((version) =>
                                 Number(version.tags["_last_edit:contributor:uid"])
diff --git a/src/UI/SpecialVisualization.ts b/src/UI/SpecialVisualization.ts
index 424049720..2accea518 100644
--- a/src/UI/SpecialVisualization.ts
+++ b/src/UI/SpecialVisualization.ts
@@ -87,7 +87,7 @@ export interface SpecialVisualizationState {
     readonly geocodedImages: UIEventSource<Feature[]>
     readonly searchState: SearchState
 
-    getMatchingLayer(properties: Record<string, string>)
+    getMatchingLayer(properties: Record<string, string>): LayerConfig | undefined
 
     showCurrentLocationOn(map: Store<MlMap>): ShowDataLayer
     reportError(message: string | Error | XMLHttpRequest, extramessage?: string): Promise<void>