That should bring up a "list of available configuration products". Check for the license you need and then add it (assuming you have access). Here's the official instructions if you want some screenshots and more detail: Reserving Static Licenses Using the License Manager. Note that you'll have to restart your Catia session if you add it this way. I used to know a way to add a license and not have to restart, but I've forgotten it over the years.
This list of license abbreviations will come in handy too: thread560-208296