Some people found this features very annoying as most of them accidentally get into this A&B mode, but I found it useful. But I still think the way VEGAS get into this Expand Edit Mode is bit cumbersome.
Maybe VEGAS can follow how Davinci just slip between 2 cutting points without converting the track A&B and change the preview windows etc. It takes roughly 1-2 sec to load it.
Also, theres 2 way of getting into this mode. One is via tracks, just right click and select Expand Tracks
OR
Just double click at the end of the event edge or press NumPad5
But I do see some difference between 2 method. Expanding the tracks manually gave u basic look, while pressing Numpad5/double click will expand the preview window too, much more detail I would say.
What is the proper terms for this kind of edit? Shift point? slipping point?