Gyro lets you set up macros (lists of commands) to be run whenever you join or leave a raid, for convenience or laziness. You can, for example, enable raid UI mods only when you're actually in a raid, disabling them when you're done.
Version 1.2.1
Additional changes for Mists of Pandaria and patch 5.0. This version of Gyro will not work on old versions of World of Warcraft.