I use multiple groups to manage persons in my database. Some of these groups being «exclusives» (i.e. a person in one such group cannot be included into another exclusive group), I often find myself going through multiple group edits to transfer a person from one group to another.
It would be pretty useful the have access to some group management functionalities when right clicking on a person in the Pedigree View (and other views as well), as for example «Add to group», «Remove from group» and even «Transfer to group».
An alternative might be to have the ability to make a group «exclusive». This way, RootsMagic could automatically make sure a person is not simultaneously found in two such groups.