What I need is an option to “extract” diagrams from model. For me is filtering only by defining root package sufficient.
My case is following:
I have one main BPMN diagram. There are few activities. Many of them are “composite” – it means they have diagrams. (In EA, when you double click on them, they opens).

In fact, I don’t want to print details of any activity… all importat informations are included in diagram.

… I can also imagine a case, when some activity has some notes. This can by the case when I want to print details of the activity.

… so I think that the best way to cover those scenarios is to add “an switch” for profile of an element, that:
“you don’t wan’t to print the element at all, if you dont have anything to say about it”
… I meen that :
If is empty
then dont print this element at all

than I could set profile only with diagrams in summary, and switch this option on.
In case I need to print Notes for those elements, I’ll add it into summary as an attribut.

But this is the most complex way how to do this:)
I thik that simply an diagram report option could be nice feature as well.