Sorry any chance to refound original "form curves" of letters and functions employed : files 3dm go to the trash bin ! :(
Have you seen the "how to make a church video" for the Arch looping?
http://forum.steph3d.net/index.php?topic=186.0

Difference "hide" between Hexagon MoI is that you can "unhide" object one by one !
Useful when you have a lot of object :)