The network option allows you to select from Mainnet or Testnet and it’s useful for advanced testing
Open your Chimera App
On the Home page, select the "Settings" button in the bottom-right corner
Then tap "Advanced Settings" in the Settings page
A new window will appear
Select your network of choice
IMPORTANT
DO NOT MODIFY ADVANCED SETTINGS UNLESS YOU FULLY UNDERSTAND THE CONSEQUENCES.
IMPORTANT
ADVANCED SETTINGS ARE FOR EXPERIENCED USERS ONLY. INCORRECT CHANGES MAY RESULT IN LOSS OF FUNDS OR APP MALFUNCTION