Outer Limits 4x4 Board

Hey

Can someone please explain this to me.
In the diagram,
1. The Left/Right, does it refer to Front/Rear?
2. In the netural position, as the pic is, if u pressed the brake pedal do the brakes function normally?
3. Say u pushed the lever forward(to the left of the pic) would that lock the 'left side' so all the braking go to the 'right side'? and vise vera if u pulled the lever back?

Anymore links that could help me understand this more would be great.
Cheers

1. yes and no depends on how you want it set up. skid steer or line locker between front and rear
2.yes
3.push to left - left side inoperative, only pressure to the right side

1 means left & right rear
2 yes
3 if you push lever forward (to left ) left rear will lock .pull back lever right rear will lock