I don't know for sure but I take the little loops of stretchy stuff and hook it under the tip of the pole to hold the front corner down. I only do this in bad whether, otherwise they're up...
As for the inside, with all of the straps and such... Man, I just play with them as needed- trying different things.
I've definitely had that thing battened down, so it can be done.
The ones that get me are the clips halfway down the sides. In nice whether I clip them up and then use the ol stick method to bring as much of the mesh vertical-ish to let in air. It starts raining hard and I unclip the clips and tighten the line.
Man- just mess with it- it'll make sense.