how are Business Activities shown?

Hi,

I’m playing around with BA’s and a complex system/application could have lots of nested BA’s.
On one hand I like the idea to collapse to the top level BA, when everything is fine.
But on the other hand, sometimes I wish to make a level of BA always expanded.

Is this in conflict to the BA idea in general or would it make sense to have the possibility to show a BA-level always expanded, even if everything looks good !?