In this screen you enable the set of coins you are interested in and the order you wish them to be listed in. You can also select custom coins here.
It is important to note that the three letter coin symbol is entered correctly as well as the cryptsy market id (for when alt exchange is cryptsy) as this is what is subsequently used by the Altcoin exchange to get the alt coin value.
When selecting the cryptsy market id be sure to use the BTC/ALT set and not the LTC/ALT because BTC is used as the baseline crypto for cross calculating altcoin values. Otherwise you will get incorrect valuations.