Follow these steps
Step 1:
Click on your Profile Name from the top-right hand side.
Step 2:
Select Profile & Settings.
Step 3:
From the left-hand side menu, click on Subscription.
Step 4:
Click on Edit from the top-right hand side.
Step 5:
- Locate the Core Subscription Details tab and update the User Licenses to the required number by clicking on + or –.
Step 6:
Click on Update from the bottom-right hand side.
Step 7:
Review the updated subscription amount and click on Confirm to complete the update.