there really isn't much to set up, but one nice feature is the 'turn on' and 'turn off' buttons. 

Click -     MAIN MENU   -   GS2   -   H key (Equipment)   -   Boom Tab (left hand side).   At the very bottom on the page is a Swath Control Settings tab.  To start, put the 'Turn On' button @ 1.4  and the 'Turn Off' at .6

 What it does -  as you enter a headland at a certain speed, (12 mph) then make a turn and accelerate out of the headland, it'll compensate for the difference in speed (ie, only 9 mph when you start a new pass).  really helps in dettering any skips.  adjust as you see fit.

let me know if you have any questions... later, marco