Would it be possible for the development team to consider adding this feature?

https://cache.getlazarus.org/videos/video-zooming.mp4

The feature above allows scrollbars in several areas to be used both for zooming and scrubbing through timelines. It also shows you at a glance the length of a clip or sequence.

With this feature you can change the zoom level of a timeline by simply dragging at either end of a scroll associated with a timeline, or scrub through the timeline by clicking and dragging a scrollbar in the middle.