diff --git a/webapp/packages/core-sdk/src/Resource/ResourceKeyList.ts b/webapp/packages/core-sdk/src/Resource/ResourceKeyList.ts
index 06ffa64794..77b47b71cc 100644
--- a/webapp/packages/core-sdk/src/Resource/ResourceKeyList.ts
+++ b/webapp/packages/core-sdk/src/Resource/ResourceKeyList.ts
@@ -45,6 +45,8 @@ export interface ResourceKeyUtils {
   some: <TKey>(key: ResourceKey<TKey>, predicate: (key: TKey, index: number) => boolean) => boolean;
   every: <TKey>(key: ResourceKey<TKey>, predicate: (key: TKey, index: number) => boolean) => boolean;
   map: MapFnc;
+  toArray: <TKey>(key: ResourceKey<TKey>) => TKey[];
+  mapArray: <TKey, TValue>(key: ResourceKey<TKey>, selector: (key: TKey, index: number) => TValue) => TValue[];
   includes: <TKey>(first: ResourceKey<TKey>, second: ResourceKey<TKey>) => boolean;
   exclude: <TKey>(first: ResourceKeyList<TKey>, second: ResourceKey<TKey>) => ResourceKeyList<TKey>;
   join: <TKey>(...keys: Array<ResourceKey<TKey>>) => ResourceKeyList<TKey>;
@@ -125,6 +127,13 @@ export const ResourceKeyUtils: ResourceKeyUtils = {
       return predicate(key, -1);
     }
   },
+  toArray<TKey>(key: ResourceKey<TKey>): TKey[] {
+    if (isResourceKeyList(key)) {
+      return key.list;
+    } else {
+      return [key];
+    }
+  },
 
   map<TKey, TValue>(key: ResourceKey<TKey>, selector: (key: TKey, index: number) => TValue): TValue | TValue[] {
     if (isResourceKeyList(key)) {
@@ -134,6 +143,14 @@ export const ResourceKeyUtils: ResourceKeyUtils = {
     }
   },
 
+  mapArray<TKey, TValue>(key: ResourceKey<TKey>, selector: (key: TKey, index: number) => TValue): TValue[] {
+    if (isResourceKeyList(key)) {
+      return key.list.map(selector);
+    } else {
+      return [selector(key, -1)];
+    }
+  },
+
   includes<TKey>(param: ResourceKey<TKey>, key: ResourceKey<TKey>): boolean {
     if (isResourceKeyList(param)) {
       return param.includes(key);