Can we PLEASE get a Dedicated Border Tool

Can the borders be able to clip to each other? I don't want to accidentally stop a border just short of connecting to another border or coastline, or go slightly past it. And to be able to use borders to trace with other tools such as paths, paint, coastline, and other borders would give us the option to use borders as a scaffolding for other tools that we could remove later. If I wanted to move a landmass, I could move its border, erase the old landmass and fill in the new one.