Question How to integrate Plesk licence in AWS Lightsail

[Bips]

Hi, I recently subscribed to AWS Lightsail (4 core, 16gb RAM). And I can't add domain more than three. I need to add 10+ domians. So please suggest where to look for this upgrade. In AWS Lightsail I can't see any options to increase domains in Plesk.
Now my question is if I purchase a Plesk licence (e.g. for 10 domains) then how can I add this licence in AWS lightsail. I don't see any options/settings in my server where I can add my Plesk licence.

 

[IgorG]

I don't see any options/settings in my server where I can add my Plesk licence.

Go to Tools&Settings > License Management > Install key