In Unified Margin Mode, you can choose [Borrow] or [Non-borrow] mode according to your personal preference.
When you migrate from classic mode to unified mode, the system will set you to [Borrow] mode by default.
Website Mode:
You can click the [Borrow] button on the right side of the order zone on the trading page to enable or disable borrowing mode.
App mode:
Click the [Function] button in the top right corner, then go to [Preference] > [Borrowing Mode], select your option, and click [Save].