I noticed this when putting on an external thread on something:
I can select the end that I want the threading to go onto the shaft by which side of the bar I select... that's cool..., but I can't 'Switch' the threaded end at all anywhere in the command window. I would expect to see a small little button that would 'switch the end' (same I show by unselecting and then selecting the face again).
Bonus:
Can we have 'thread both ends' as an additional option as well?