Scrolling sideways via touchpad not working

Greetings. I am using Scapple mostly on my laptop which has the usual 5 touch point touch pad.
When I swipe with 2 fingers upwards, it scrolls horizontally (up/down) However when I swipe with 2 fingers sideways it doesn’t do anything. I would expect it to scroll left/right.

Any chance this could be fixed or implemented?

Thanks :slight_smile: