How to activate a Control Studio Software license?
Edited
In Control Studio go on Tools -> Licenses Available and activate one license out of the list shown in the wizard.
Click on close after activation.
Note: You need to be logged in to perform the license activation!
If you haven't installed Control Studio yet, go to the portal.cntrl.io log in with your user account. Navigate to Software -> Desktop Software and download the latest version and install it. If you want to see more details on the installing process, check this section of the Documentation for more information.