DFR0781 Evaluation Board setPrompt and setLED

Hi!

I'm currently building a project with a DFR0781 Evaluation Board (https://www.dfrobot.com/product-2178.html?srsltid=AfmBOoq0OS0aeRMSeMA0bqZvtavnKrK7ZdPnFY1UTW4vNHE6tBwwX7J-).

Using the DFRobot_BT401 library.

On the README (https://github.com/DFRobot/DFRobot_BT401) it is said to have a setLED and setPrompt feature. I can't seem to find these in the .h or .cpp files?

Are there anyway to turn of the LED and prompt via AT+ commands?

Best regards
Thomas