Would it be possible to limit projects bar to a configured level?

[earthshrink]

E.g. I have top level projects Biz.Office, Biz.Bills, etc., Personal.Bills, Personal.Health, Personal.Family, etc. It would be so much more useful to have the top bar just list Biz, Personal, etc, and let me drill down by clicking. Maybe with a settings for project depth.
Also, it would be neat to have the top bar list Biz, Personal, etc. and show the counts for Biz.Bills and Personal.Bills, if I set the filter to pro.contains:Bills.

[cinatic]

i like the idea with the drill downs