1. A method for setting up an access level for use of a software system comprising different levels of user accesses, wherein the software system comprises one of: a control system for controlling a power plant; a control system for controlling a process; the method comprising the steps of: using a first user login to log in to the software system, the first user login having a first access level comprising a first set of permissions, using a second user login to log in to the software system, the second user login having a second access level comprising a second set of permissions, combining the permissions of the first set of permissions and the second set of permissions in the software system, thereby setting up the access level for the use of the software system, the access level comprising the combined permissions of the first set of permissions and the second set of permissions allowing the first and second users to access programs or retrieve information from the control system with their respective sets of permissions now available simultaneously.