Adding folders to the eSpace Tree

Hi everyone.

Is it possible to add custom folders to an eSpace tree (mainly the folders would be added as sub-folders to the default ones, but if they could be added as top-level, that would be nice.)?

The reason I want this is: I need to add custom theming to an application, and it would be very nice that, instead of naming images "theme1_HeaderLogo", "theme2_HeaderLogo", etc. they could be named equally but each in their separate folder, as in "theme1\HeaderLogo", "theme2\HeaderLogo". It would be much cleaner and more maintainable.

So, any ways to do this?

Thank you very much!

Filipe Silva