I realize. And I used that extensively. But if you're trying to draw lots of little links, or complex geometry, you often end up highlighting lines w/ undo, f

I realize. And I used that extensively. But if you're trying to draw lots of little links, or complex geometry, you often end up highlighting lines w/ undo, fixing a location in your head, and then trying to pick it again when they go invisible. A constant visibility option would just streamline that.