Suggestion Cornerstone for positioning blueprint builds

[Cranky Cat]

I know making the blueprint object snappable has been mentioned but since it's not really a typical object then how about snapable "cornerstones". A simple square with an arrow on top or some other indication of direction. You could put it where you want the near/left corner of your build. Any cornerstones could be deleted when the blueprint controller is scrapped or hidden.

It makes sense since historically the cornerstone was literally used to set the position of the rest of the structure. Well, traditionally it'd be in the Northeast corner but that might be a bit too much realism