Adding ring groups to contact manager

In contact manager, we use the user manager to list all the internal extensions for our company. I am looking for a way to add an entry to that same group that will dial a ring group. So far I have only been able to set it to ring an extension. I would like to have an entry that can transfer a call to a ring group that could ring 5 phones until one picks up. I know it could be done by creating a new group in the internal contacts area, but then I will have another category level on my Sangoma phone to navigate.

Is it possible to add an entry that dials a ring group?