I thank you very much, Sarah, for the detailed direction.
However, this feature is for a TouchPad on a Notebook only. It is not a standard feature in general, and I don't have it (yet) on my "stationary".
No, tomos, it wasn't skrommel's DragLock I had seen, but it does exactly what I was asking for, doesn't it, so why go to the end of the world when the answer is to be found in my backyard! THANKS, tomos, and THANKS, skrommel! Edited
: No, sorry, that was not the FINAL answer to my wanting. It is not possible to change direction in the middle of a movement, as skrommel's version leaves you with Either horizontal OR vertical. I honestly *imagine
* that what I saw allowed the user to go both directions without letting go, so it could be used to drag and drop, which skrommel's version really can't. But I was not in a position to ask, so MAYBE I was deluding... Edited
again: Yes, it can!
: keep the mouse pressed while letting go + pressing the hotkey again.