To change the name of any wallet in your Cryptopay account, you need to click on the desired account first. For example, here is a Bitcoin wallet:
After clicking on the wallet, you'll see all the information about it and, of course, its name. Near the account's name, there's a small pencil sign.
Just click it and type anything you want! Don't forget to click the Save changes button after you enter a suitable name!
Now it even appears in its new form on the main page of your account!