hi I got an error in Blender it say that "Modifiers cannot be applied to multi-user data" while I'm trying to apply a mirror modifier to a hood what can I do about it? Nosslak: Ukey on the object the mesh Make Single User what is LOD? nick :) Level of detail? what do you mean? no he gave you an answer it's copy from #blenderchat what is LOD? he is one kind person :) with this nickname I think you're confusing me with someone else my name is Robin not Nick it say that "Modifiers cannot be applied to multi-user data" while I'm trying to apply a mirror modifier to a hood is this your question? ya well Ukey on the object the mesh Make Single User aah is this better? :) I thought U was undo in obj mode too thanks say thanks to LOD :)