It would be convenient to be able to collapse or expand all groups, in any view, to be able to isolate groups of projects at once.

Right now, as an example, if I go to "next" and "group by project" I currently get 112 projects, all with their tasks expanded. I'd like to be able to collapse all, then expand the 5-6 that need my attention.

v4 of the MAC software allows the user to isolate "one or all" tasks of these 112 projects, but this does not produce the same result as collapse/expand all.