Hi,
Is there a way to correct and add functionality to standard possibilities “Shading Property overrides” (http://img150.imageshack.us/img150/3883/paramu.jpg [img150.imageshack.us])which are accessible at the geometry level?

What do you mean by “correct” and “add functionality”?

Do you mean, can you add parameters and then put expressions in them? In theory yes. Try it and see!

Hi,
I want to know whether its possible or not to edit parameters creation menu , for example add some entries or edit existing ones. I.e. find out whether “Create All Local Material Parameters” (or any other) is a built-in command or external script which can be edited.