You can do this with shaders. In the texture room, bottom, right, click on the shaders tab. If you select the shader there, the General properties show up above and you can edit the name.

No solution for the model room though. Someone could write a plug-in that lets you do something like Edit|Rename Me, but that would be a lot of work for not much benefit. Best option is to probably send the request to eovia.

Good luck,
Eric Winemiller
Digital Carvers Guild
Carrara plug-ins

Eric Winemiller
Digital Carvers Guild
Carrara and LightWave plug-ins