Any user authorised to access the Control Panel is able to add/edit/remove users.
See Setting up New Users to learn about adding users.
To edit existing User settings, select the Edit icon to the right of the username. The same dialogue box shown when adding a user populates. Any changes or additions to the existing setting can be made here and will reflect immediately upon selecting Save.
To remove existing Users, select the Delete icon to the right of the username. A confirmation box will appear, select Yes to deactivate the User. The username and details will remain within the system in case these details are required at a later date, the user should be reactivated or in case this was done in error.