I have Documents with a lot of references to other collections. When running reports I need to do many lookups and unwinds. It would be nice to be able to group these stages in the list so I can hide/show them at once.
It would also be nice if we could (de)activate the group as a whole. Use case would be trying multiple different methods consisting of multiple stages to search/process the data and being able to easily swap between the two methods.