TSM uses security to limit which actions various security groups can perform. Sometimes, it might be convenient to bypass the security and switch temporarily to a supervisor or other group, perform the restricted action and then switch back to the original user.
Use the Log Out option to change the logged in user whilst staying exactly at the same place in TSM.
This is much more convenient than shutting TSM down, logging in as another user and then navigating back to the same place in the program.