diff --git a/src/frontend/src/stores/globalVariables.ts b/src/frontend/src/stores/globalVariables.ts
index 6cbb8a641..913bd278d 100644
--- a/src/frontend/src/stores/globalVariables.ts
+++ b/src/frontend/src/stores/globalVariables.ts
@@ -4,6 +4,16 @@ import { GlobalVariablesStore } from "../types/zustand/globalVariables";
 export const useGlobalVariablesStore = create<GlobalVariablesStore>(
   (set, get) => ({
     avaliableFields: [],
+    unavaliableFields: new Set(),
+    setUnavaliableFields: (fields) => {
+      set({ unavaliableFields: fields });
+    },
+    addUnavaliableField: (field) => {
+      set({ unavaliableFields: get().unavaliableFields.add(field) });
+    },
+    removeUnavaliableField: (field) => {
+      get().unavaliableFields.delete(field);
+    },
     setAvaliableFields: (fields) => {
       set({ avaliableFields: fields });
     },
diff --git a/src/frontend/src/types/zustand/globalVariables/index.ts b/src/frontend/src/types/zustand/globalVariables/index.ts
index fbf7f0675..f94dc868b 100644
--- a/src/frontend/src/types/zustand/globalVariables/index.ts
+++ b/src/frontend/src/types/zustand/globalVariables/index.ts
@@ -10,4 +10,8 @@ export type GlobalVariablesStore = {
   avaliableFields: Array<string>;
   setAvaliableFields: (fields: Array<string>) => void;
   addAvaliableField: (field: string) => void;
+  unavaliableFields: Set<string>;
+  setUnavaliableFields: (fields: Set<string>) => void;
+  addUnavaliableField: (field: string) => void;
+  removeUnavaliableField: (field: string) => void;
 };