When more than 25 people sign up for a raid, my guild resolves who gets to come based on who signed up earliest. I just wrote this to make figuring out who that is a little easier, since there is no option to sort by sign up time in the default UI. Commands are /sort which prints a list of everyone who accepted or is tentative, in order they signed up, /sortnotraid which does the same for only people not in your raid, and /lastinraid (which identifies the 3 people in the raid currently who were last to sign up). The event info window that lists signups must be open when one of these commands is entered (I tried to get new buttons in said window, but couldn't get it to work).