If you select two nodes, you get the handy extra info box that shows their horizontal and vertical distances (among other things). I would find it useful to also see their direct distance (along the hypotenuse you could say) in that box–especially if I could enter a number into that field and have the position(s) adjust as I can with the H and V measurements.
This would be super useful for establishing consistency, for example making the thickness of the terminals the same in letters that end at all different directions.
Being able to see and set the angle (as you can with guides) would be a bonus.
EDIT: I see that the Show Distance and Angle plug-in is a way of getting the math, but not inputting the desired distance as I’m requesting.