Sorry for being a pest and putting this issue for Building Gadgets 1 in the wrong github, but it looks like the first version is no longer being updated.
In short I'd like to know why BG can't paste structures in negative areas Y direction. BG is a great mod with CC, but doesn't work below 0 depth!

My Building Gadgets 1 issue:
Direwolf20-MC/BuildingGadgets#769

Thanks for any response in advance!