Lightroom :: Left / Right Panning In Zoom With Shortcuts

I would like to continue using the Adjustment Brush outside of a currently zoomed area without having to jump out to pan with the mouse to the next area of the image. (If I change from the Adjustment Brush to mouse-click driven panning, I simply lose the end of my formerly brushed (painted) area, because it can be 're-activated' only with its pin, which is outside of the new area where I have just moved by panning with the mouse.)
 
I can move up and down with the scrolling roll without quitting the Adjustment Brush, but I have not figured out how to pan horizontally with a shortcut (e.g. something like Shift + Left/Right arrow key).
 
I am aware that by using the Shift + PgUp/PgDn keys I can pan up to the top, then down to the bottom in the adjacent strip, and then up again in the third strip, etc. But this 'vertical zig-zagging' is very time consuming and does not necessarily take me right to the targeted next area.
 
Is there any shortcut for horizontal panning in Zoom?