What everyone else has said is correct. Typically you would lay down the front shock an let out the front limiters. This in theory would allow the sled to get on top the snow easier and stay flatter.
Letting the limiter out allows the shock to maintain full stroke even though it isn't at optimal angle for transfer of force from bumps and jumps.
With it in the down position you also exert less transfer force of the machine. You will be less likely to wheelie. However, you will place more pressure on your skis. This may lead to more darting on the trail.
Put a chalk mark or tape or something on the floor where your track first touches the ground. Then make the adjustments and that mark should have moved further back. You have now in essence changed your approach angle.
As stated this was a great improvement on the edge chassis. I am trying it on the IQ this year too. This is more of a deep powder adjustment and should work good for boon docking.
If you spend a lot of time jumping or on the trail I wouldn't recommend doing this as you are going to sacrifice ride quality and as Ron stated, suspension action. If you ride a lot of set up snow this probably won't benefit either as you are not as concerned about the approach angle.