as a preservation manager I would appreciate to be able to switch between the search levels IE/REP/FILE when working with Preservation Sets.
I agree, that migrations are on file level, but it would be helpful to know how many IEs/which IEs are involved in a Preservation Set. The test set also shows a list of IEs. Furthermore a lot of information for toubleshouting comes on IE-Level: view problematic IEs, view skipped objects, reports on locked IEs,...