When you create a new group, you'll be given the option to make that group your default group. If you choose a group as your default, it will be automatically selected when you make actions or emails and navigate to various parts of the system, as well as your home page when you log in. Use this option if you are the admin for one group or want to send emails or create actions in this group exclusively.
If you do not have a default group set, the links in the Start Organizing menu will correspond to the group you are currently managing. This is ideal if you are managing multiple groups. We do not recommend using default groups if you manage multiple groups.