questions about using umbrello

Hello.
I am trying to use umbrello at work, and have some questions about it's usab=
ility.

I am using w7 (not a choice) with umbrello v2.20.90.
My goal is to use umbrello to reverse a hube codebase.

My questions are:
* how does the "include subdirectories" work?
* how can I move all classes in a single diagram in one shot?
* how can I avoid selecting relations (lines) when clicking on a class which=
 is drawn _above_ the relation?