Yeah... the moment I read your first reply, I knew my feature request was dead.
Andy Mees wrote:conversely, a single keyboard modifier (eg ALT/OPT) that, while pressed, would temporarily toggle the currently active edit behaviour (from Selection to Trim or vice versa) would be great.
This would be a good alternative (like it is done in AVID).
We already have a similar functionality, where you can press the Trim Edit shortcut while trimming
and it reverts back to Normal Mode after the trim, but I can't get used to press the shortcut after I use the mouse and let it go before I let the mouse go...