Can't set trainer difficulty

Hi everybody!

I’ve read it’s possible to set trainer’s difficulty, but I just don’t have the option. (I am trying to post the screenshot but it says I am not allowed to).

Any ideas?

Search the forum. There are a few other threads on this already.

Additional information: I just changed my trainer. On the previous one, it still works. This one instead doesn’t change adapt to the slope, doesn’t work with erg function… and it’s something it should do!

It’s a thinkrider X7pro.

May it have just a malfunction?

did you pair it as controllable and power?