Steps:
Open the Relay App to begin!
Tap on Settings
Tap on Change Name
Review the Warning message and tap Continue
Enter a name you'd like to use
Tap Save
Now you are all set!
Additional Notes
Changing a Relay's name will clear its message history
Names must be between 3 & 32 characters
Names can only contain letters and spaces
At this time special characters and numbers are NOT allowed
To rename another Relay app, please see How to Change the Name of A Relay Device