I'm getting into playing more on vassal. Often times, the same thing happens and I was wondering if I'm missing something simple. If you misclick and end up doing a template move that wasn't what you intended, is there an "undo" feature somewhere? Best I can tell, you need to get a template out and trace your way back and manually put yourself where you started. Is that the best option available?

Upper left of the main chat window. The undo button looks like a looped arrow. Click that a few times and it will roll back anything that took place.

Oh thank god. I don't know why I couldn't find that.

Or, if there is a bunch of intervening stuff you do not want to undo, simply manually rotate the ship 180 degrees and perform the appropriate maneuver to return to your original position. Rotate back to original heading as necessary. For a K-turn, just do the same maneuver again.