You need to be an Administrator to update licences.
Go to System Administration --> System --> Import
Then go to Licences and click "Update licence" for each row of licences you have.
Troubleshooting:
Error saying you need X amount of licences:
You need to remove one or more licences that is occupied by users before updating.
Please go to this page:
Manage licences
and follow the guide to remove licences by component or by user.
Server offline "Could not etablish a connection with Online Services":
Contact Support@businessanalyze.com for the licencefile by mail.
Please attach a screenshot with information about the installation.
Example:

Please attach a screenshot with information about the installation.
Example:
Upload the licence file in the import window in the "Upload new file" tab.

When the file is uploaded you can update licences in the "Licences" tab.