The sub-user groups and sub-user accounts are the newly added feature of Mumara, which is different from the User’s Role Groups and the general User Accounts the admin can create using the “User Management” module of Mumara. These groups actually offer the admin the ability to share its privileges with users in the particular group.
Sub-users will be discussed in its respective article, the following passage discusses creating sub-user groups. Sub-User Accounts has a separate navigational division in the left menu, click Sub-User Group to start creating a new Sub-User Role Group.
The process is simple and pretty much similar to creating a user’s role group in user management. You will just put forward a “Group Name” in its respective field, and start giving privileges to the sub-users that you will later add to this group. Tick the checkbox to allow the sub-user group to perform a particular action, keep the box empty if you don't want the sub-user in this particular group to perform certain actions.

After completing, click the Submit button to save the settings.