Option in dialogue NOT to cut of ends of existing paths when adjusting paths

Question

more often than not when I draw with the pencil tool to adjust a paths course, it will delete one of the ends, either the longer or shorter side, this is not what I want, I want to simply adjust the course of the path during its journey, without losing either of the ends, it takes tedious trial and error to get it right and not lose the path, often I just end up deleting the whole path and redrawing it from scratch, which is not why I like the path adjustment option with the pencil tool,
I like to sketch out my paths to lay them down, then refine them with the path adjustment pencil option working back and forth in this manner..
if I draw over one part of the path, continue its journey like a river in another direction and cross back over that path,I want that middle section between those 2 points overlapping the original path to be redrawn, but leave the ends intact as they were...
so If I choose edit selected paths, wherever I draw over with the pencil tool on the selected existing path (in yellow below), the adjusting path is green, the original cross over points are circled in orange,
Shown here even If I consequently draw over that path several times, whereever the adjusting path (green) last crosses over the underlying selected path (yellow)  will be where the adjustment ends. Ideally you wouldnt have to worry about how close you "start" the adjusting path, aslong as it crosses over that path,
so end result here, while not accurately displaying adjustment path above, you still get the idea,
but this would be a lot simpler than having to get within "x" amount of pixels to the line, and totally avoid the lost ends of original path sydnrome.
but if thats what you want,then as is currently available, where the green path crosses over the original yellow path, this continues the yellow path from that direction in the direction the green path is being drawn, then where the green line last crosses over the yellow path, the option to continue its line versus completing the yellow lines original end journey. so effectively a tickbox option in dialogue like"continue adjustment path if last crossover beyond x pixels or points" on the HUD display I suggested, as result below,
the thing with this method is it avoids the annoying and frustrating event of losing either the long or short side of the existing path..and allows quicker easier path editing.without having to pinpoint the pencil tool on the existing path or get it extremely close, thats allright when your pen tooling, but I pencil tool more often in the beginning as I do animals, flowers, faces and figures which are more organic and sketchy. then refine with pen and warp tools after..

Answer 1

where you cross an existing path with adjustment path on only one point, the previous line will question which of its sides from that point you want to keep, the start of its line to the adjusting paths cross over point, or the cross over point to the end of that line being adjusted,
a radio circle option in the HUD display could allow "keep long" or "keep short" as in keep the longer side of the line, or the shorter side measured from the cross over point to the either end of the line..
i`ll post a video next week to illustrate what I`m trying to say here..