diff --git a/extensions/ql-vscode/src/common/interface-types.ts b/extensions/ql-vscode/src/common/interface-types.ts
index 083c8a528..dcbd3b22e 100644
--- a/extensions/ql-vscode/src/common/interface-types.ts
+++ b/extensions/ql-vscode/src/common/interface-types.ts
@@ -577,6 +577,11 @@ interface SetModeledMethodMessage {
   method: ModeledMethod;
 }
 
+interface SetMultipleModeledMethodsMessage {
+  t: "setMultipleModeledMethods";
+  modeledMethods: ModeledMethod[];
+}
+
 interface SetInModelingModeMessage {
   t: "setInModelingMode";
   inModelingMode: boolean;
@@ -643,14 +648,14 @@ interface SetMethodModifiedMessage {
 interface SetSelectedMethodMessage {
   t: "setSelectedMethod";
   method: Method;
-  modeledMethod?: ModeledMethod;
+  modeledMethods: ModeledMethod[];
   isModified: boolean;
 }
 
 export type ToMethodModelingMessage =
   | SetMethodModelingPanelViewStateMessage
   | SetMethodMessage
-  | SetModeledMethodMessage
+  | SetMultipleModeledMethodsMessage
   | SetMethodModifiedMessage
   | SetSelectedMethodMessage
   | SetInModelingModeMessage;
diff --git a/extensions/ql-vscode/src/model-editor/method-modeling/method-modeling-view-provider.ts b/extensions/ql-vscode/src/model-editor/method-modeling/method-modeling-view-provider.ts
index 571db56d7..95bf5b785 100644
--- a/extensions/ql-vscode/src/model-editor/method-modeling/method-modeling-view-provider.ts
+++ b/extensions/ql-vscode/src/model-editor/method-modeling/method-modeling-view-provider.ts
@@ -14,10 +14,7 @@ import { assertNever } from "../../common/helpers-pure";
 import { ModelEditorViewTracker } from "../model-editor-view-tracker";
 import { ModelConfigListener } from "../../config";
 import { DatabaseItem } from "../../databases/local-databases";
-import {
-  convertFromLegacyModeledMethod,
-  convertToLegacyModeledMethod,
-} from "../shared/modeled-methods-legacy";
+import { convertFromLegacyModeledMethod } from "../shared/modeled-methods-legacy";
 
 export class MethodModelingViewProvider extends AbstractWebviewViewProvider<
   ToMethodModelingMessage,
@@ -77,9 +74,7 @@ export class MethodModelingViewProvider extends AbstractWebviewViewProvider<
         await this.postMessage({
           t: "setSelectedMethod",
           method: selectedMethod.method,
-          modeledMethod: convertToLegacyModeledMethod(
-            selectedMethod.modeledMethods,
-          ),
+          modeledMethods: selectedMethod.modeledMethods,
           isModified: selectedMethod.isModified,
         });
       }
@@ -165,13 +160,10 @@ export class MethodModelingViewProvider extends AbstractWebviewViewProvider<
         if (this.webviewView && e.isActiveDb) {
           const modeledMethods = e.modeledMethods[this.method?.signature ?? ""];
           if (modeledMethods) {
-            const modeledMethod = convertToLegacyModeledMethod(modeledMethods);
-            if (modeledMethod) {
-              await this.postMessage({
-                t: "setModeledMethod",
-                method: modeledMethod,
-              });
-            }
+            await this.postMessage({
+              t: "setMultipleModeledMethods",
+              modeledMethods,
+            });
           }
         }
       }),
@@ -198,7 +190,7 @@ export class MethodModelingViewProvider extends AbstractWebviewViewProvider<
           await this.postMessage({
             t: "setSelectedMethod",
             method: e.method,
-            modeledMethod: convertToLegacyModeledMethod(e.modeledMethods),
+            modeledMethods: e.modeledMethods,
             isModified: e.isModified,
           });
         }
diff --git a/extensions/ql-vscode/src/model-editor/method.ts b/extensions/ql-vscode/src/model-editor/method.ts
index bc60afd92..6f2d377be 100644
--- a/extensions/ql-vscode/src/model-editor/method.ts
+++ b/extensions/ql-vscode/src/model-editor/method.ts
@@ -68,12 +68,12 @@ export function getArgumentsList(methodParameters: string): string[] {
 
 export function canMethodBeModeled(
   method: Method,
-  modeledMethod: ModeledMethod | undefined,
+  modeledMethods: ModeledMethod[],
   methodIsUnsaved: boolean,
 ): boolean {
   return (
     !method.supported ||
-    (modeledMethod && modeledMethod?.type !== "none") ||
+    modeledMethods.some((modeledMethod) => modeledMethod.type !== "none") ||
     methodIsUnsaved
   );
 }
diff --git a/extensions/ql-vscode/src/view/method-modeling/MethodModelingView.tsx b/extensions/ql-vscode/src/view/method-modeling/MethodModelingView.tsx
index f1a8d8d13..d004222be 100644
--- a/extensions/ql-vscode/src/view/method-modeling/MethodModelingView.tsx
+++ b/extensions/ql-vscode/src/view/method-modeling/MethodModelingView.tsx
@@ -10,7 +10,6 @@ import { vscode } from "../vscode-api";
 import { NotInModelingMode } from "./NotInModelingMode";
 import { NoMethodSelected } from "./NoMethodSelected";
 import { MethodModelingPanelViewState } from "../../model-editor/shared/view-state";
-import { convertFromLegacyModeledMethod } from "../../model-editor/shared/modeled-methods-legacy";
 import { MethodAlreadyModeled } from "./MethodAlreadyModeled";
 
 type Props = {
@@ -25,19 +24,13 @@ export function MethodModelingView({ initialViewState }: Props): JSX.Element {
 
   const [method, setMethod] = useState<Method | undefined>(undefined);
 
-  const [modeledMethod, setModeledMethod] = React.useState<
-    ModeledMethod | undefined
-  >(undefined);
+  const [modeledMethods, setModeledMethods] = useState<ModeledMethod[]>([]);
 
   const [isMethodModified, setIsMethodModified] = useState<boolean>(false);
 
   const modelingStatus = useMemo(
-    () =>
-      getModelingStatus(
-        convertFromLegacyModeledMethod(modeledMethod),
-        isMethodModified,
-      ),
-    [modeledMethod, isMethodModified],
+    () => getModelingStatus(modeledMethods, isMethodModified),
+    [modeledMethods, isMethodModified],
   );
 
   useEffect(() => {
@@ -54,15 +47,15 @@ export function MethodModelingView({ initialViewState }: Props): JSX.Element {
           case "setMethod":
             setMethod(msg.method);
             break;
-          case "setModeledMethod":
-            setModeledMethod(msg.method);
+          case "setMultipleModeledMethods":
+            setModeledMethods(msg.modeledMethods);
             break;
           case "setMethodModified":
             setIsMethodModified(msg.isModified);
             break;
           case "setSelectedMethod":
             setMethod(msg.method);
-            setModeledMethod(msg.modeledMethod);
+            setModeledMethods(msg.modeledMethods);
             setIsMethodModified(msg.isModified);
             break;
           default:
@@ -89,7 +82,7 @@ export function MethodModelingView({ initialViewState }: Props): JSX.Element {
     return <NoMethodSelected />;
   }
 
-  if (!canMethodBeModeled(method, modeledMethod, isMethodModified)) {
+  if (!canMethodBeModeled(method, modeledMethods, isMethodModified)) {
     return <MethodAlreadyModeled />;
   }
 
@@ -104,7 +97,7 @@ export function MethodModelingView({ initialViewState }: Props): JSX.Element {
     <MethodModeling
       modelingStatus={modelingStatus}
       method={method}
-      modeledMethods={convertFromLegacyModeledMethod(modeledMethod)}
+      modeledMethods={modeledMethods}
       showMultipleModels={viewState?.showMultipleModels}
       onChange={onChange}
     />
diff --git a/extensions/ql-vscode/src/view/model-editor/ModeledMethodDataGrid.tsx b/extensions/ql-vscode/src/view/model-editor/ModeledMethodDataGrid.tsx
index 3599a2971..2791f0708 100644
--- a/extensions/ql-vscode/src/view/model-editor/ModeledMethodDataGrid.tsx
+++ b/extensions/ql-vscode/src/view/model-editor/ModeledMethodDataGrid.tsx
@@ -12,6 +12,7 @@ import { sortMethods } from "../../model-editor/shared/sorting";
 import { InProgressMethods } from "../../model-editor/shared/in-progress-methods";
 import { HiddenMethodsRow } from "./HiddenMethodsRow";
 import { ModelEditorViewState } from "../../model-editor/shared/view-state";
+import { convertFromLegacyModeledMethod } from "../../model-editor/shared/modeled-methods-legacy";
 
 export const GRID_TEMPLATE_COLUMNS = "0.5fr 0.125fr 0.125fr 0.125fr 0.125fr";
 
@@ -49,7 +50,7 @@ export const ModeledMethodDataGrid = ({
       const methodIsUnsaved = modifiedSignatures.has(method.signature);
       const methodCanBeModeled = canMethodBeModeled(
         method,
-        modeledMethod,
+        convertFromLegacyModeledMethod(modeledMethod),
         methodIsUnsaved,
       );