I haven't got to try this yet, but doing it the light way, as dec10 would say it, will be massively difficult.
So, here's a potential spoiler:
Something I noticed when I first started competing, is that the pros could find ways to build solid plates that spat out on the "wrong" side.
In other words, a catcher could be made to shoot downwards, perhaps held by ropes, which saves an awful lot of trouble threading clever catchers through the hole.
I never discovered how they did it though. Something about zooming in very close, and repositioning the ends, and even whether you went left to right or right to left.
You just have to keep on trying, building and editing any way you can think of, until it works.
It's kinda like the Indian Rope Trick. But not. If you know what I mean.
![Very Happy :D](./images/smilies/icon_biggrin.gif)