render directory variables

[sharktacos]

In the Maya render settings there are variables that can be used for the “file name prefix” field. For example
%s or <scene> is the scene name, %l or <RenderLayer> is the render layer. My question is: what is the variable for a vray render element?
What I’d like to do is is use this to modify the name of sub directories.

[svetlozar.draganov]

Unfortunately there aren’t any vray variables that could be specified there.
You can specify the name of the sub-folders from “Vray Extra Attributes” but this will also change the name of the render element inside this folder.