I think this is a bug; one should be able to open the edit screen of the person selected from the index.
I get the same behaviour as Robert but then it appears to be working as designed.
One accepted bug is the problem where on People View with a Group filtered, you right click select QuickGroups and deselect the person from the Group in focus, the person is not removed. It's a long time since I tested this and it may be when an individual is a member of several groups.
I quickly fired RM up to ensure it hasn't been fixed and it hasn't, the other odd behaviour, if I deselect the person from the Group in View on refrest the Group selection beside "Customize this view" changes to another Group name of which the person is a member but the data in view remains the same including the person who has just been deselected. Going to QuickGroups again and the person who has just been deselected is still a member of that Group.
I have read somewhere this odd behaviour will be will be dealt with in RM8.