Use a Level 2 Admin to Force a User's Logout
Navigate to Settings > General > Security > Active Licenses > Active Users Page
Note: Only a Level 2 Admin user has access rights to view/use this setting.
Select from the Users Logged In menu which user you would like to log out.
Enter your own user's password in the Confirm Password field and choose Logout.
The user will be logged out and the license will then be available for another user.