Yes, in the menu on the left under "Users" you can create additional users with separate roles that should have access rights to the control panel.
The user's permissions and their differences are explained in this article
A user account in the Control Panel is not related to the user licenses of the individual EL Cloud Services.
The EL Control Panel
makes working with EBERTLANG's cloud products a breeze. You manage all customers and services via one interface and make changes in just a few steps. Comprehensive reports and statistics also give you a quick overview of storage utilization and revenues.