You would like to add a new user but don't know the difference to the Access levels?
What does "Administrators", "read and write access" and "read only" mean?
Administrator is someone who can edit everything in his organisation. That is, an administrator can change all data and has "System settings".
A User with "read and write access" can do everything like an administrator, but has no access to "System settings".
A User with "read only" access can only access data, cannot edit anything and has no access to "System settings".