To reduce or partially close an open position, follow these steps:

1. Right-click on the order you want to reduce.
2. Select “Modify or Delete Order.”
3. In the pop-up window, choose “Market Execution” as the order type.
4. Enter the number of lots you want to reduce.
5. Click “Close” to execute the partial position reduction.

This allows you to manage risk or lock in profits without closing the entire position.