If you want to change your trading account name, you can. Follow the process below:
Step 1: Click on "Portfolios" in the menu
Step 2: Click on the "More" button corresponding to the trading account whose name you want to change.
Step 3: Click on "Account Settings"
Step 4: Change the name of your trading account in the "Account Name" field.
Step 5: Click "Save" to confirm.