Set Playback Shuttle Speed

It would be great to have more options to change defaults of "playback shuttle speed". I end up editing a lot of long-form talking-heads type videos and vlog style material. This often has lots of little cuts and edits, so adjusting the clip speed and then resetting it to default later is onerous and feels like a work around for a feature that exists and is almost perfect.

That feature is Shuttle Right and Slow Shuttle Right. I wish I could adjust the default speed increments for both of these. Additionally when I make an edit the playback speed is reset to 1x (realtime). It would be great to be able to toggle that on and off.

Because I am often working with very long clips/sequences adjusting the speed via the duration menu is a pain, but the default speed for shuttle Right is too fast, so I end up pressing [Shift+L] about 5 times to get to the right speed for me. An area in preferences where I could set the detault speed adjustment for [L] (say 1.5x or 1.75x) and an option to set it to toggle on and off when I pause to make edits rather than just default back to realtime would actually change my life.

Thanks!