Making FOF's

Ok, So I've decided to screw waiting for a tutorial and just work with what I know so far. I've managed to get sectors, ledges, and springs down, but when it comes to FOF's I'm stuck. Everytime I try, what is supposed to be an FOF is at best a pillar with a chunk the size of my intended FOF platform out of it.

Can anyone tell me how to work FOF's in SRB2 Workbench?

Exactly the same way they work in SRB2 Doom Builder...


...Or are you using the FOF setup option (if there is one in WB, I can't remember)?

Ok, I see the problem. I was trying to make the sector that was supposed to be the FOF match the control sector, when I was just supposed to leave it as-is and tag it to the control sector.