I see your confusion
Lets see the different winch arrangments
1) ELAN has 4 winches, 2 winches on top of cabin, 2 in cockpit. The cabin ones is one for halyards, one for main ,and the 2 in the cockpit for the genoa.
2) GS older models have 4 winches, 2 in cabin for halyards, outhauls etc, 2 in the cockpit for the genoa, main is controlled by purchase near the end of the boom
3) The newer GS have 6 winches, 2 in cabin for halyards, outhauls etc, 2 in the cockpit for the genoa (forward) and 2 in cockpit rear for main control in the Admirals system. I have that system in my boat.
HERE IS THE DRAWING I COULD NOT POST THAT SHOW HOw to single hand with 6 winch system like I have