You can update the Project Group to rename the group or to assign administrators. Navigate to Project Groups and and click the Edit icon.

In the pop-up window, you can change the project group's name or assign an administrator. To add an administrator, select one of the available project group members, click the Plus icon to add them to the list of project group administrators, and click Save. Note: the option to manage administrators in the project group is only available to an assigned project group administrator and require permission to edit project groups.