Since I read somewhere that the library system that will support custom meshes is still open for features, here they come:
- possibility the define custom (prerendered) thumbnails
- save selected mesh as library item and have possibility the create VRay and MRProxy at the same time
- possiblity to choose from a material pool per object (some explanation: for proxied trees you need to define a multisubobject with probably a bark and leaf material; often you can have a completely different look for the same mesh by just making another material. Having an "attached" material library is more convenient then a seperate "Max" one)
- since you're making a mesh library system, why not make it so you can store all kinds of objects in it: furniture, etc. So you should also be able to just place library elements in the scene !
There's more coming...