PRIME-NG LTS license key setting

[karimmaknojia]

Hope you are doing well. Recently, I have purchased PRIME-NG LTS one developer license/ subscription from the store (https://www.primefaces.org/store/lts.xhtml)
Since our application is built on Ultima Layout with a basic license type. We want to use PRIME-NG LTS controls and we are not able to see how we set the license key.

Can anyone help or provide guidance, how to configure PRIME-NG LTS with angular 12 application using ultima layout basic version?
What steps should we follow to install and activate the license?
Actually, we have tried updated imports with PRIME-NG LTS tags but we're still not able to find a way when the license key will be used?

Looking forward to hearing from you.