Perhaps I just missed this option in the key-map, though I’ve scrolled through many times. In any event, I was wondering if there was a defined keystroke or set that I could hit in order to move the current line (or selection) up or down (as many lines as needed).
Something like this could be very useful, for instance, in a programming environment in which one decides to add a new structure and realizes that a certain line or two should be moved down in order to accomidate.