Questions on the arena

[koo_04]

In the rules, it states that the apposing team can not enter the 'key'. In the diagrams of the arena, it says the size of the what it says the 'key' is. Which is 101in wide and 48in deep. Also says that the edge is 144in from the alliance station. My team is confused on wether it is that entire area or just the solid semi-circle area.

We where also wondering on what the other two human players are aloud to do. Pick balls out of the corral, put balls through the inbound station, all of the above? We only know that the kinect players can move to the start line area.

Please help!! Thanks a ton.