There are two possibilities here. Either Jason is talking about the same situation as what the Product Idea talks about (I voted that up BTW 
) or he is referring to a surface a quilt. If a quilt is made up of several surfaces then the loop functionality only picks the loop of an individual surface of the quilt. Most of the time I want the boundary of the entire quilt, not its individual surface. The ability to do that would be pretty handy.
The surface I would like to project the edges from is a copy and pasted quilt but it would be the same for a face if it worked like I envision it. The surface that I am trying to project is the floor of a pocket that has 100+ bosses protruding upwards from it of all different sizes and shapes. There are also a large number of holes and c'bores, which is why I have to copy and paste the face to create a quilt filling all holes. I would then like to create an extrude cut from this surface to remove the material around the bosses from my manufacturing workpiece. To do this using loops or selecting all edges would take me a very long time. Here is a portion of the geometry.
In the manufacturing module certain types of NC sequences automatically remove the material from the workpiece but the NC sequence that I am using for this particular feature does not.
