When you run Supervisor you will need to log in using your username and password.
Once logged in you will be able to select which license you would like to check out.
Check In- Floating licenses only
If the license is a Floating license then during the check out you will see a check-box to select "Perform automatic check in when Supervisor is closed" (The Primary User of an account nominates the default auto check in settings on a per user basis: Configuring default behaviour)
If this is selected then the license will automatically check in. If automatic check in is not selected the user will need to manually check the license back in. In Supervisor click on Help and then select License Manager
Then you can click on Check In which will check in the license.
If required a Force Check-In can also be done online, this can be performed by the Primary Contact of the account or any user with the “Manage Users” permission granted