Configuring my Tasmotized 2 gang dimmer is a problem

Hi there!

Here a question from a Dutch guy.
I bought this 2-gang MoesHouse dimmer:

I successfully tasmotized it by soldering the TYWE2S module from the rest of the electronics, programming it and putting it back again.

Now I have a hard time to configure it in the right way.
I use [TuyaMCU - Tasmota] as a guideline and I even use the bookmarklet (GitHub - sillyfrog/Tasmota-Tuya-Helper: Bookmarklet for Tasmota to assist configuring Tuya devices) but now I’m pretty much stuck…

My question: Is there anybody with experience in the problem??