Is there a Group Manager in V7??
You type a command, then it would bring up a window listing all the groups, you then select a group, and it selects all the objects on the drawing for that group, something like that, and giving the option to rename the group, add/remove objects from the group, etc.,etc.
These are all separate commands in Rhino, there is no unified interface.
SelGroup (name)
AddToGroup
RemoveFromGroup
SelGroup is what I was looking for - thanks!