Is there a feature to 'plug' geometry on surfaces?

 From:  Michael Gibson
9778.8 In reply to 9778.7 
Hi aphaits, the Transform > Orient command can be good for placing an object aligned with a surface normal on a curved surface.

http://moi3d.com/3.0/docs/moi_command_reference8.htm#orient
http://moi3d.com/forum/index.php?webtag=MOI&msg=3424.13
http://moi3d.com/forum/index.php?webtag=MOI&msg=3424.14

Also if you have an object set up in its own separate file centered around the origin you can the ImportPart command which is available by a right-click on the File > Import button. That will bring in that file's content and place it like the Orient command.

- Michael