Navigate to the 'License Center' tab in the side menu and select 'Edit Licenses'
Select the subscription you wish to edit
Select 'Edit Subscription'
Make any changes you need and add addons, then select 'Update Subscription'
Navigate to the 'License Center' tab in the side menu and select 'Edit Licenses'
Select the subscription you wish to edit
Select 'Edit Subscription'
Make any changes you need and add addons, then select 'Update Subscription'