diff --git a/assets/layers/questions/questions.json b/assets/layers/questions/questions.json
index c76de6bfe..2339a5d94 100644
--- a/assets/layers/questions/questions.json
+++ b/assets/layers/questions/questions.json
@@ -3611,7 +3611,8 @@
             "it": "In questo posto non è possibile prenotare"
           }
         }
-      ]
+      ],
+      "onSoftDelete": "reservation="
     },
     {
       "id": "ref",
diff --git a/scripts/generateDocs.ts b/scripts/generateDocs.ts
index 15e75755d..fb8038b61 100644
--- a/scripts/generateDocs.ts
+++ b/scripts/generateDocs.ts
@@ -386,9 +386,11 @@ export class GenerateDocs extends Script {
 
         allLayers.forEach((layer) => {
             const element = layer.generateDocumentation(
-                themesPerLayer.get(layer.id),
-                layerIsNeededBy,
-                DependencyCalculator.getLayerDependencies(layer)
+                {
+                    usedInThemes: themesPerLayer.get(layer.id),
+                    layerIsNeededBy: layerIsNeededBy,
+                    dependencies: DependencyCalculator.getLayerDependencies(layer),
+                },
             )
             const inlineSource = inlineLayers.get(layer.id)
             ScriptUtils.erasableLog("Exporting layer documentation for", layer.id)
@@ -481,15 +483,17 @@ export class GenerateDocs extends Script {
             "questions.json",
             true
         )
+        const reusedTagRenderings = DependencyCalculator.tagRenderingImportedBy(qLayer, Array.from(AllSharedLayers.sharedLayers.values()))
+        const docs = qLayer.generateDocumentation({ reusedTagRenderings })
         this.WriteMarkdownFile(
             "./Docs/BuiltinQuestions.md",
-            qLayer.generateDocumentation([], new Map(), []),
+            docs,
             ["assets/layers/questions/questions.json"]
         )
     }
 
     private generateForTheme(theme: ThemeConfig): void {
-        const allLayers = AllSharedLayers.getSharedLayersConfigs()
+        const allLayers = AllSharedLayers.sharedLayers
         const layersToShow = theme.layers.filter(
             (l) => l.id !== "favourite" && Constants.added_by_default.indexOf(<any>l.id) < 0
         )
@@ -520,7 +524,7 @@ export class GenerateDocs extends Script {
             MarkdownUtils.list(theme.language.filter((ln) => ln !== "_context")),
             "# Layers defined in this theme configuration file",
             "These layers can not be reused in different themes.",
-            ...layersToInline.map((l) => l.generateDocumentation(null)),
+            ...layersToInline.map((l) => l.generateDocumentation({ usedInThemes: null })),
         ].join("\n")
         this.WriteMarkdownFile(
             "./Docs/Themes/" + theme.id + ".md",
@@ -587,11 +591,13 @@ export class GenerateDocs extends Script {
                 Constants.priviliged_layers.map((id) => AllSharedLayers.sharedLayers.get(id))
             ).map((l) =>
                 l.generateDocumentation(
-                    themesPerLayer.get(l.id),
-                    layerIsNeededBy,
-                    DependencyCalculator.getLayerDependencies(l),
-                    Constants.added_by_default.indexOf(<any>l.id) >= 0,
-                    Constants.no_include.indexOf(<any>l.id) < 0
+                    {
+                        usedInThemes: themesPerLayer.get(l.id),
+                        layerIsNeededBy: layerIsNeededBy,
+                        dependencies: DependencyCalculator.getLayerDependencies(l),
+                        addedByDefault: Constants.added_by_default.indexOf(<any>l.id) >= 0,
+                        canBeIncluded: Constants.no_include.indexOf(<any>l.id) < 0,
+                    },
                 )
             ),
             "# Normal layers",
diff --git a/scripts/generateLayerOverview.ts b/scripts/generateLayerOverview.ts
index a98e2cd9c..85cbd2aa9 100644
--- a/scripts/generateLayerOverview.ts
+++ b/scripts/generateLayerOverview.ts
@@ -14,11 +14,7 @@ import {
 import { Translation } from "../src/UI/i18n/Translation"
 import { PrepareLayer } from "../src/Models/ThemeConfig/Conversion/PrepareLayer"
 import { PrepareTheme } from "../src/Models/ThemeConfig/Conversion/PrepareTheme"
-import {
-    Conversion,
-    DesugaringContext,
-    DesugaringStep,
-} from "../src/Models/ThemeConfig/Conversion/Conversion"
+import { Conversion, DesugaringContext, DesugaringStep } from "../src/Models/ThemeConfig/Conversion/Conversion"
 import { Utils } from "../src/Utils"
 import Script from "./Script"
 import { AllSharedLayers } from "../src/Customizations/AllSharedLayers"
@@ -35,10 +31,7 @@ import { Translatable } from "../src/Models/ThemeConfig/Json/Translatable"
 import { ValidateThemeAndLayers } from "../src/Models/ThemeConfig/Conversion/ValidateThemeAndLayers"
 import { ExtractImages } from "../src/Models/ThemeConfig/Conversion/FixImages"
 import { TagRenderingConfigJson } from "../src/Models/ThemeConfig/Json/TagRenderingConfigJson"
-import {
-    LayerConfigDependencyGraph,
-    LevelInfo,
-} from "../src/Models/ThemeConfig/LayerConfigDependencyGraph"
+import { LayerConfigDependencyGraph, LevelInfo } from "../src/Models/ThemeConfig/LayerConfigDependencyGraph"
 
 // This scripts scans 'src/assets/layers/*.json' for layer definition files and 'src/assets/themes/*.json' for theme definition files.
 // It spits out an overview of those to be used to load them
@@ -54,7 +47,7 @@ class ParseLayer extends Conversion<
     private readonly _doesImageExist: DoesImageExist
 
     constructor(prepareLayer: PrepareLayer, doesImageExist: DoesImageExist) {
-        super("ParseLayer", "Parsed a layer from file, validates it", [])
+        super("ParseLayer", "Parsed a layer from file, validates it")
         this._prepareLayer = prepareLayer
         this._doesImageExist = doesImageExist
     }
@@ -113,7 +106,7 @@ class AddIconSummary extends DesugaringStep<{ raw: LayerConfigJson; parsed: Laye
     static singleton = new AddIconSummary()
 
     constructor() {
-        super("Adds an icon summary for quick reference", ["_layerIcon"], "AddIconSummary")
+        super("AddIconSummary","Adds an icon summary for quick reference")
     }
 
     convert(json: { raw: LayerConfigJson; parsed: LayerConfig }) {
@@ -158,7 +151,7 @@ class LayerBuilder extends Conversion<object, Map<string, LayerConfigJson>> {
         states: Map<string, "clean" | "dirty" | "changed">,
         sharedTagRenderings: QuestionableTagRenderingConfigJson[]
     ) {
-        super("LayerBuilder", "Builds all the layers, writes them to file", [])
+        super("LayerBuilder", "Builds all the layers, writes them to file")
         this._levels = levels
         this._dependencies = dependencies
         this._states = states
@@ -667,7 +660,7 @@ class LayerOverviewUtils extends Script {
         priviliged.delete("last_click")
         priviliged.delete("search")
 
-        const isBoostrapping = AllSharedLayers.getSharedLayersConfigs().size == 0
+        const isBoostrapping = AllSharedLayers.sharedLayers.size == 0
         if (!isBoostrapping && priviliged.size > 0) {
             throw (
                 "Priviliged layer " +
diff --git a/src/Customizations/AllSharedLayers.ts b/src/Customizations/AllSharedLayers.ts
index b0de3480f..64a461bb4 100644
--- a/src/Customizations/AllSharedLayers.ts
+++ b/src/Customizations/AllSharedLayers.ts
@@ -4,7 +4,7 @@ import * as known_layers from "../assets/generated/known_layers.json"
 import { LayerConfigJson } from "../Models/ThemeConfig/Json/LayerConfigJson"
 
 export class AllSharedLayers {
-    public static sharedLayers: Map<string, LayerConfig> = AllSharedLayers.getSharedLayers()
+    public static sharedLayers: ReadonlyMap<string, LayerConfig> = AllSharedLayers.getSharedLayers()
     public static getSharedLayersConfigs(): Map<string, LayerConfigJson> {
         const sharedLayers = new Map<string, LayerConfigJson>()
         for (const layer of known_layers["layers"]) {
diff --git a/src/Models/ThemeConfig/Conversion/Conversion.ts b/src/Models/ThemeConfig/Conversion/Conversion.ts
index 86beeecb3..dc6fd7d7e 100644
--- a/src/Models/ThemeConfig/Conversion/Conversion.ts
+++ b/src/Models/ThemeConfig/Conversion/Conversion.ts
@@ -9,7 +9,7 @@ export interface DesugaringContext {
      * Order of appearance in questions.json
      */
     tagRenderingOrder: string[]
-    sharedLayers: Map<string, LayerConfigJson>
+    sharedLayers: Map<string, Readonly<LayerConfigJson>>
     publicLayers?: Set<string>
 }
 
diff --git a/src/Models/ThemeConfig/DependencyCalculator.ts b/src/Models/ThemeConfig/DependencyCalculator.ts
index af3129bbf..23519668e 100644
--- a/src/Models/ThemeConfig/DependencyCalculator.ts
+++ b/src/Models/ThemeConfig/DependencyCalculator.ts
@@ -3,9 +3,38 @@ import { ExtraFuncParams, ExtraFunctions } from "../../Logic/ExtraFunctions"
 import LayerConfig from "./LayerConfig"
 import { SpecialVisualization } from "../../UI/SpecialVisualization"
 import SpecialVisualizations from "../../UI/SpecialVisualizations"
+import { LayerConfigJson } from "./Json/LayerConfigJson"
 
 export default class DependencyCalculator {
-    public static GetTagRenderingDependencies(tr: TagRenderingConfig): {
+
+    /**
+     * For every tagRendering in the listed layers, determines in what layers they end up
+     */
+    public static tagRenderingImportedBy(questionedLayer: LayerConfig, layers: LayerConfig[]): Map<string, {
+        layer: string
+    }[]> {
+        const result: Map<string, { layer: string }[]> = new Map()
+
+        for (const layer of layers) {
+            const hasRightContext = layer.tagRenderings.filter(tr => tr._definedIn !== undefined && tr?._definedIn?.[0] === questionedLayer.id)
+            for (const tr of hasRightContext) {
+                const id = tr._definedIn[1]
+                if (!result.has(id)) {
+                    result.set(id, [])
+                }
+                result.get(id).push({ layer: layer.id })
+            }
+        }
+
+        return result
+    }
+
+    /**
+     * Calculates what layers are introduced by a tagRenderingConfig
+     * @param tr
+     * @private
+     */
+    private static getTagRenderingDependencies(tr: TagRenderingConfig): {
         id: string
         minzoom?: number
         neededBy: string
@@ -83,7 +112,7 @@ export default class DependencyCalculator {
         }
 
         for (const tr of layer.AllTagRenderings()) {
-            for (const dep of DependencyCalculator.GetTagRenderingDependencies(tr)) {
+            for (const dep of DependencyCalculator.getTagRenderingDependencies(tr)) {
                 deps.push({
                     neededLayer: dep.id,
                     reason: `tagrendering ${dep.neededBy} needs this layer`,
diff --git a/src/Models/ThemeConfig/LayerConfig.ts b/src/Models/ThemeConfig/LayerConfig.ts
index 3d516a7cd..3b0d7df45 100644
--- a/src/Models/ThemeConfig/LayerConfig.ts
+++ b/src/Models/ThemeConfig/LayerConfig.ts
@@ -439,15 +439,15 @@ export default class LayerConfig extends WithContextLoader {
     }
 
     public generateDocumentation(
-        usedInThemes: string[],
-        layerIsNeededBy?: Map<string, string[]>,
-        dependencies: {
-            context?: string
-            reason: string
-            neededLayer: string
-        }[] = [],
-        addedByDefault = false,
-        canBeIncluded = true
+        { usedInThemes = [], layerIsNeededBy, dependencies = [], addedByDefault = false, canBeIncluded = true, lang = "en", reusedTagRenderings }: {
+            usedInThemes?: string[],
+            layerIsNeededBy?: Map<string, string[]>,
+            dependencies?: { context?: string; reason: string; neededLayer: string }[],
+            addedByDefault?: boolean,
+            canBeIncluded?: boolean,
+            reusedTagRenderings?: Map<string, {layer: string}[]>,
+            lang?: string
+        }
     ): string {
         const extraProps: string[] = []
         extraProps.push("This layer is shown at zoomlevel **" + this.minzoom + "** and higher")
@@ -669,7 +669,7 @@ export default class LayerConfig extends WithContextLoader {
             this.generateDocumentationQuickTable(),
             ...this.tagRenderings
                 .filter((tr) => tr.labels.indexOf("ignore_docs") < 0)
-                .map((tr) => tr.GenerateDocumentation()),
+                .map((tr) => tr.generateDocumentation(lang, reusedTagRenderings?.get(tr.id)?.map(l => l.layer))),
             ...filterDocs,
         ].join("\n\n")
     }
diff --git a/src/Models/ThemeConfig/TagRenderingConfig.ts b/src/Models/ThemeConfig/TagRenderingConfig.ts
index c7bf5c52d..f7055f4d7 100644
--- a/src/Models/ThemeConfig/TagRenderingConfig.ts
+++ b/src/Models/ThemeConfig/TagRenderingConfig.ts
@@ -941,7 +941,7 @@ export default class TagRenderingConfig {
         }
     }
 
-    GenerateDocumentation(lang: string = "en"): string {
+    generateDocumentation(lang: string = "en", usedInLayers?: string[]): string {
         let freeform: string = undefined
         if (this.render) {
             freeform = "\n*" + this.render.textFor(lang) + "*"
@@ -1016,12 +1016,18 @@ export default class TagRenderingConfig {
         let labels: string = undefined
         if (this.labels?.length > 0) {
             labels = [
-                "This tagrendering has labels ",
+                "This tagrendering has labels",
                 ...this.labels.map((label) => "`" + label + "`"),
-            ].join("\n")
+            ].join(" ")
+        }
+        let reuse : string = undefined
+        if(usedInLayers?.length > 0){
+            reuse = [`This tagRendering is used in ${usedInLayers.length} layers:`,
+                ...usedInLayers.map(l => `[${l}](./Layers/${l}.md)`)
+            ].join(" ")
         }
 
-        return [
+        return Utils.NoNull([
             "### " + this.id,
             this.description,
             this.question !== undefined
@@ -1031,7 +1037,9 @@ export default class TagRenderingConfig {
             mappings,
             condition,
             labels,
-        ].join("\n")
+            "",
+            reuse
+        ]).join("\n")
     }
 
     public usedTags(): TagsFilter[] {
diff --git a/src/UI/Studio/EditLayerState.ts b/src/UI/Studio/EditLayerState.ts
index 1b2a131c1..82d18df6c 100644
--- a/src/UI/Studio/EditLayerState.ts
+++ b/src/UI/Studio/EditLayerState.ts
@@ -283,8 +283,7 @@ class ContextRewritingStep<T> extends Conversion<LayerConfigJson, T> {
     ) {
         super(
             "ContextRewritingStep",
-            "When validating a layer, the tagRenderings are first expanded. Some builtin tagRendering-calls (e.g. `contact`) will introduce _multiple_ tagRenderings, causing the count to be off. This class rewrites the error messages to fix this",
-            []
+            "When validating a layer, the tagRenderings are first expanded. Some builtin tagRendering-calls (e.g. `contact`) will introduce _multiple_ tagRenderings, causing the count to be off. This class rewrites the error messages to fix this"
         )
         this._state = state
         this._step = step
@@ -460,7 +459,7 @@ export default class EditLayerState extends EditJsonState<LayerConfigJson> {
         }
         const state: DesugaringContext = {
             tagRenderings: sharedQuestions,
-            sharedLayers: layers,
+            sharedLayers: new Map(layers),
             tagRenderingOrder: [],
         }
         const prepare = this.buildValidation(state)