Keyboard command for hor. scrolling?

I am using Nuendo in var. versions for > 10 years and I have always been looking for a key command to perform horizontal scrolling (left/right) in any editor or the project window. I find it very cumbersome having to grab the mouse and aim at the very thin hor. scroll bar everytime I need to scroll to somewhere else in my project or in a midi track, an audio file etc…

After an upgrade or from time to time I scan the (very comprehensive !) key command configuration window looking for this option but I cant find it. There are options for almost any command or setting but ‘horizontal scrolling left/right’ or so doesn’t seem to be available. Am I overlooking something? Are there other ways to get that function on keys? It seems strange that all other such functions are available as key commands. (vert. scrolling …)

I use Nuemdo 11 but the problem (or my problem to find this function) has existed since Nuendo 3 …
Any ideas?