WowAce

There are two modes available when inserting players into a Roll list, "Normal" and "Auto-Add" mode. "Normal Mode" inserts players at the end of the roll list, "Auto-Add Mode" inserts players into a random position into the list.

This is, to some extent, a holdover from previous versions of the plugin, and not necessary to ever use. In prior versions, the initial setup of a roll list involved players rolling a /random 1000 to determine their initial position in the roll list. In the new version, "Auto-Add" mode takes care of that automatically when the admin inserts the player into the list.

It is discouraged to use "Auto-Add" mode at all after initial list creation for a variety of reasons, but primarily as it just generally being unfair to existing list members.