I think after I may have opened an old project (template I had saved) from an earlier version of Red by accident, it trashed approx. 1/2 of the quick access buttons in the timeline window of RedGL 3.0.
I can't figure out in prefs or anywhere how to get them back. Is this as simple as deleting the settings file?
Down at the bottom of the timeline, towards the left you will see a trinagle with a line to the right of it, kind of looks like a next track button on a cd player....push that button, you will now have everything back.