Here is how to participate in multiple groups on Count.It:
Create a new Count.It account with a different email address and then either:
A. use a free phone app as your secondary tracker, (i.e. the Count.It iOS App, Google Fit) or attach a secondary device (i.e. Fitbit, Strava, Garmin, etc). - OR - B. check to confirm if either (or both) of your groups are subscribed to the Count.It PRO plan and allowing Manual Entry, which would allow you to simply manually enter the tracked data from your connected device into your secondary profile!
Please note: If you want to maintain your current account (same email, username and connected trackers) and simply switch groups, please see here.