I'm working in Unity 5, and I currently have the following setup:
My project contains two prefabs which we'll call "Cube" and "CubeT". Cube was imported from an FBX file generated by Autodesk 3DS Max, and CubeT was created within Unity. I want to be able to modify Cube's mesh collider, but Unity will not allow me to do so. Therefore, I've thought about adding the mesh within Cube to CubeT and removing Cube. The thing is, I'm worried that I'll lose the mesh when I delete Cube, and subsequently lose the reference to it in CubeT.
If I reference Cube's mesh in CubeT and then remove Cube from the project by deleting the asset within Unity, what will happen? Will the needed mesh remain in the project or am I going to have to find another way?