Adding a license to an existing license pool

-Go to Settings > Center config > Licenses.
-Look for the license pool where you want to put additional game license/s and click the three dots button on the right side. Select "+ Add license" button on the dropdown menu.

-Select the platform where the license will be used in Type field, then enter the username and password in their respective fields. Click "Add more" button to add another license in the pool or click "Add" to finish adding the license.