Hi DesuDeus,

> I just need to get used to it.

Yeah, once you get used to it you'll probably find quite a lot of places where it can be useful. Pretty much any spot where you were creating temporary line objects is easier to do with this mechanism instead.

In a certain sense it allows you to quickly create a kind of temporary grid line adapted to your particular need of the moment. And then it goes away so you don't have to erase it.

There are a bunch of details on additional uses of construction lines here: (French translation by Pilou):
http://moi3d.com/1.0/docs/moi_command_reference10_French.htm#constructionlines


> Maybe it would help people to have a separate icon in the UI.

Unfortunately that would defeat one of the main functions of it, which is that it is so quickly available to be activated, since you can do it just by a quick "hold & drag" action with the mouse rather than needing to move all the way over to some other icon to activate it.

- Michael