It would be greatly beneficial if you could add a checkbox to be able set one person to have a master role within a BlueBeam studio session. This would allow that one person to have full control of the session (remove or edit other peoples markups etc and do general tidy up of markups, add in pages and remove pages of a set). This would also resolve the issue of no one being able to remove markups that were added to the set before it was uploaded to the studio session.