diff --git a/src/stores/useModelStore.ts b/src/stores/useModelStore.ts
index 7bc3c16..cd1821b 100644
--- a/src/stores/useModelStore.ts
+++ b/src/stores/useModelStore.ts
@@ -410,6 +410,15 @@ export const useModelStore = create<ModelStore>((set, get) => ({
 
   clearAllModels: () => set({ models: [], activeModelId: null, model: null, fineTuning: { ...defaultFineTuning } }),
 
+  setCalibration: (id, quat) => set((state) => {
+    const models = state.models.map(m => {
+      if (m.id !== id) return m;
+      savePlacement(m.fileName, m.fineTuning, quat);
+      return { ...m, calibrationQuat: quat };
+    });
+    return { models };
+  }),
+
   // ── Legacy single-model proxies ─────────────
   model: null,
   setModel: (m) => {