Herelink Solex Gimbal control


since a few weeks i fly a homebuilt copter with a Pixhawk 2.1 and Herelink controls. Everything works fine so far except for one problem. I would like to be able to adjust the camera gimbal in the inclination infinitely variable. In a video

you can see that the Solex TX app implements a slider to adjust the camera accordingly. The slider has to control a PWM- channel with which the gimbal is controlled. Unfortunately the slider is not linked to a PWM channel.
The software is from June 2020.
Can someone please tell me where I can set this in the settings?

Thanks in advance.

Greeting H-Hermann

This is not available yet as far as I am aware. @kellyschrockis this something that could be done ?

Thanks for the answer. Does anyone know when this might be available? Strange that it already works on the video.