I have found solution for this: 1)MaxScript >turn ON MacroRecorder 2)Click on material (In my case Multi material) and then 'Go Forward to Sibling' one by one to the end. You should get sth like this: "meditMaterials[14].material1.DirectX_Manager.enabled = off meditMaterials[14].materialList[2].DirectX_Manager.enabled =…