Currently in the controls help it lists:

CTRL/cmd + Mouse scroll/wheel up/down - Zoom in/out timeline
Mouse scroll/wheel left/right - Pan timeline

As seen above the ctrl/cmd + scroll modifier combo is already taken for zooming in and out of the timeline, but this only works when your cursor is actually over the timeline, additionally shift and alt are still available to possibly use here. And the hotkeys listed under 'seeking' aren't as useful or consistent as having the scroll on timeline.

Holding shift for increased jumps in the timeline would be beneficial to skip through segments more quickly, without having to scroll the default 5s jumps a lot or zooming out of the timeline to manually jump to a time elsewhere.

ALT could perhaps be used for finer control, jumps per keyframe or just smaller increments of ~1 second, compared to the default 5.

Alternatively a change to the hotkeys:

• Z + scroll / Z + up/down arrow keys = zoom timeline
• Scroll on timeline = skip 5s
• Alt + scroll on timeline = skip 1s/keyframe
• Ctrl/cmd + scroll on timeline = skip 10s (keeping the original behaviour to zoom when cursor is not on timeline)
• Shift + scroll on timeline = skip 30-60s