Mx ergo mouse buttons

I don’t know how to change the buttons on my mouse

What is it in particular you’re wanting to program it to do? I haven’t worked with this particular mouse but maybe there’s a way to do it manually.

It has two little buttons that do forward and back in chrome I want page up and page down

Sorry for the late response. I tried to do the equivalent on my Logitech mouse but I didn’t have any luck. It’s a bit complicated unfortunately. I hope to try again when I have more time.