When I'm trying to move all of the contents of a baseline from whatever their current workflow state is into a "released" workflow state I should be able to click/select objects of multiple different object types and change them all at once. As it stands, I can only group objects of the same type. This makes no sense; there is no scenario where it's reasonable to be able to multi-select and advance a group of topics or maps or tasks but not the other resources used by them.