1. Log in to Zhang Le Fortune Connect account and enter the trading interface.

2. Click "Personal Center" in the upper left corner and select "Strategy Center".

3. In the "Strategy Center" interface, click "User-defined indicator".

4. In the user-defined indicator interface, click Import Indicator.

5. In the indicator import interface, enter the indicator name and code, and click Save.

6. In the user-defined indicator interface, you can see the imported indicators. You can click Edit to modify it, or click Delete to delete it.

7. In the interface of strategy backtesting or firm trading, the imported indicators can be quantitatively analyzed and traded, that is, the indicators are successfully installed.