diff --git a/extensions/ql-vscode/src/config.ts b/extensions/ql-vscode/src/config.ts
index 2450796358c..94ddebdf318 100644
--- a/extensions/ql-vscode/src/config.ts
+++ b/extensions/ql-vscode/src/config.ts
@@ -709,6 +709,7 @@ const MODEL_SETTING = new Setting("model", ROOT_SETTING);
 const FLOW_GENERATION = new Setting("flowGeneration", MODEL_SETTING);
 const LLM_GENERATION = new Setting("llmGeneration", MODEL_SETTING);
 const EXTENSIONS_DIRECTORY = new Setting("extensionsDirectory", MODEL_SETTING);
+const SHOW_MULTIPLE_MODELS = new Setting("showMultipleModels", MODEL_SETTING);
 
 export function showFlowGeneration(): boolean {
   return !!FLOW_GENERATION.getValue<boolean>();
@@ -723,3 +724,7 @@ export function getExtensionsDirectory(languageId: string): string | undefined {
     languageId,
   });
 }
+
+export function showMultipleModels(): boolean {
+  return !!SHOW_MULTIPLE_MODELS.getValue<boolean>();
+}
diff --git a/extensions/ql-vscode/src/model-editor/model-editor-view.ts b/extensions/ql-vscode/src/model-editor/model-editor-view.ts
index 7724d565144..fdb1f8ffcfc 100644
--- a/extensions/ql-vscode/src/model-editor/model-editor-view.ts
+++ b/extensions/ql-vscode/src/model-editor/model-editor-view.ts
@@ -34,7 +34,11 @@ import {
 import { Method, Usage } from "./method";
 import { ModeledMethod } from "./modeled-method";
 import { ExtensionPack } from "./shared/extension-pack";
-import { showFlowGeneration, showLlmGeneration } from "../config";
+import {
+  showFlowGeneration,
+  showLlmGeneration,
+  showMultipleModels,
+} from "../config";
 import { Mode } from "./shared/mode";
 import { loadModeledMethods, saveModeledMethods } from "./modeled-method-fs";
 import { pickExtensionPack } from "./extension-pack-picker";
@@ -365,6 +369,7 @@ export class ModelEditorView extends AbstractWebview<
         extensionPack: this.extensionPack,
         showFlowGeneration: showFlowGeneration(),
         showLlmButton,
+        showMultipleModels: showMultipleModels(),
         mode: this.mode,
       },
     });
diff --git a/extensions/ql-vscode/src/model-editor/shared/view-state.ts b/extensions/ql-vscode/src/model-editor/shared/view-state.ts
index 29b1aa5f5ee..e16036b5c48 100644
--- a/extensions/ql-vscode/src/model-editor/shared/view-state.ts
+++ b/extensions/ql-vscode/src/model-editor/shared/view-state.ts
@@ -5,5 +5,6 @@ export interface ModelEditorViewState {
   extensionPack: ExtensionPack;
   showFlowGeneration: boolean;
   showLlmButton: boolean;
+  showMultipleModels: boolean;
   mode: Mode;
 }
diff --git a/extensions/ql-vscode/src/stories/model-editor/LibraryRow.stories.tsx b/extensions/ql-vscode/src/stories/model-editor/LibraryRow.stories.tsx
index 31b5bc4ba87..9e526c724ff 100644
--- a/extensions/ql-vscode/src/stories/model-editor/LibraryRow.stories.tsx
+++ b/extensions/ql-vscode/src/stories/model-editor/LibraryRow.stories.tsx
@@ -214,6 +214,7 @@ LibraryRow.args = {
     extensionPack: createMockExtensionPack(),
     showFlowGeneration: true,
     showLlmButton: true,
+    showMultipleModels: true,
     mode: Mode.Application,
   },
   hideModeledMethods: false,
diff --git a/extensions/ql-vscode/src/stories/model-editor/ModelEditor.stories.tsx b/extensions/ql-vscode/src/stories/model-editor/ModelEditor.stories.tsx
index 3fc48b41c0d..1747054b386 100644
--- a/extensions/ql-vscode/src/stories/model-editor/ModelEditor.stories.tsx
+++ b/extensions/ql-vscode/src/stories/model-editor/ModelEditor.stories.tsx
@@ -30,6 +30,7 @@ ModelEditor.args = {
     },
     showFlowGeneration: true,
     showLlmButton: true,
+    showMultipleModels: true,
     mode: Mode.Application,
   },
   initialMethods: [
diff --git a/extensions/ql-vscode/src/view/model-editor/__tests__/LibraryRow.spec.tsx b/extensions/ql-vscode/src/view/model-editor/__tests__/LibraryRow.spec.tsx
index c66a27183ed..bbbd6c4c09a 100644
--- a/extensions/ql-vscode/src/view/model-editor/__tests__/LibraryRow.spec.tsx
+++ b/extensions/ql-vscode/src/view/model-editor/__tests__/LibraryRow.spec.tsx
@@ -20,6 +20,7 @@ describe(LibraryRow.name, () => {
     mode: Mode.Application,
     showFlowGeneration: false,
     showLlmButton: false,
+    showMultipleModels: false,
     extensionPack: createMockExtensionPack(),
   };
 
diff --git a/extensions/ql-vscode/src/view/model-editor/__tests__/ModeledMethodsList.spec.tsx b/extensions/ql-vscode/src/view/model-editor/__tests__/ModeledMethodsList.spec.tsx
index f43f1ed79f7..ecc7c3d6c1b 100644
--- a/extensions/ql-vscode/src/view/model-editor/__tests__/ModeledMethodsList.spec.tsx
+++ b/extensions/ql-vscode/src/view/model-editor/__tests__/ModeledMethodsList.spec.tsx
@@ -48,6 +48,7 @@ describe(ModeledMethodsList.name, () => {
     mode: Mode.Application,
     showFlowGeneration: false,
     showLlmButton: false,
+    showMultipleModels: false,
     extensionPack: createMockExtensionPack(),
   };