If you're using Stackable Premium on a client site and you want to hide your license and account details, here's how to do it.
Log in first into your Stackable Account.
Navigate to Websites, then click on the website entry you want to hide the information on. Then on the right pane that opens, tick the checkbox that says This license is activated on my client(s) site(s)
Once checked, your license key and other info will be hidden from the admin.