Editing levels in Flock! is nothing like herding sheep

I’m not so sure what’s going on with the level editor in Flock! It clearly looks easy to use and the whole flying saucer thing appears to lend itself well to creating levels, but where is the user interface? How the heck are we supposed to know what we’re placing? Assuming this is all in real-time and we’re seeing the entire screen I’m just confused on how this is all going to work out. Does Flock! know what pieces you want to put down and then do it for you? I don’t want Capcom in my head, there are secrets in there — dangerous secrets!

Besides, if I can’t pull this off with my level design, what’s the point of herding sheep anyway?