Hi NightCabbage, yeah in Scale1D after you have picked the first 2 points all further input is restricted and projected to that line.

So if you want to make some construction lines that are not on that same line you need to place them before you pick those 2 points, you should be able to pick any construction lines you need freely before that stage of the command.

The way construction lines work, when you activate one the construction line starts at the current "active point" which is the one with the crosshairs on it. I guess it could be possible for them not to work that way and instead go to the raw osnap point before projection, but that could possibly have bad side effects in other cases where other things like distance constraint could not be used to control the base point location of a construction line.

- Michael