Navigate left-right in Dorico 3.5 - trackpad and touchscreen

Dorico 3.5, Windows 10, convertible.
I don’t find a way to navigate in the score horizontally. The 2-finger-swipe on the trackpad is very slow (it used to work on MacBook though), and the 2-finger swipe on the touchscreen doesn’t work (it does work vertically however).
Also, zooming via 2-finger-in-and-out on the touchscreen is messy and gives unpredictable results.
Any suggestions?

If you have Home and End keys, those scroll left and right.
If you’re on an all-touch interface, I don’t know.

I use the scroll wheel on my track ball. when combined with shift, it navigate to left and right.