Path/Line location type

Hey, the world building tool is great, but I have one problem with creating paths/rivers. Currently, they can be made only as areas, which can only be horizontal or vertical. I saw that there is polygon area feature planned, but I think that the simple line location type, with direction logic for Franz (ex. to be able to move along the road) would do the work. Ideally it would be with ability to add multiple points, but one line with AB point would be great too.