Managed Groups and Dashboards

In our original setup, we had granted certain individuals the Dashboard in order to be able to see all upcoming lessons and be able to enter anonymously (in order to evaluate the instructor, or pop in to the meeting if a student was being troublesome). This is a franchise setting - however, we had no groups set up and with the Dashboard admins could see all the meetings in the managed account, not just ones belonging to their franchise.

If I organize the franchises into groups in the system, and then determine who in each franchise would be the admin over that group and then grant them the Dashboard, will it/can it limit their dashboard view to just their group?