To create and add sub-accounts, perform the following steps:
1. Open the Phemex App and log in to your account.
2. Tap the Account Icon on the top left of the screen.
3. Tap the Sub-accounts option.
4. Tap the + Icon on the top-right of the page.
5. A new sub-account will be automatically added under the Sub-accounts section. Tap the Switch button to begin using that sub-account.