I believe this was in older version
I think should be axis lines added to move tools when you select a single entity of a line or piece.
and you can turn this option on or off
you can basicly see the axis lines (blue/green/red lines) when you move so you can aline the line for points when moving to trace blueprints and stuff. so you can tell where you lines are without being in a specific view.
heres some pictures to show what I mean
so that the axes lines are on the point they would follow
and in this one
see how the green line alines with the blueprint line in that view.
that’s kind of where I’m getting at with this idea.)
(if this is already on how do I activate this mode.)