You can change and customize your Lightning Address using the same steps as customizing your Gamertag because your Lightning Address and Gamertag are the same.
Here's how:
Open your ZBD App.
Tap your Gamertag in the gray box above your wallet balance.
Tap ‘Edit Gamertag’ at the bottom of the Gamertag & Lightning Address screen.
Change or edit your Gamertag and hit ‘Save Gamertag’.
📍 Please keep in mind: you can update your gamertag only once every 24 hours. This policy is in place to help maintain the integrity of your gaming persona and the community.
Quick reminder: Changing your Gamertag will also update your Lightning Address and your zbd.gg page.