Swaps two raid members between subgroups in the raid. Only has effect if the player is the raid leader or a raid assistant. To move a member into a non-full subgroup without switching places with another member, see
See also Raid functions.
index1- Index of the first raid member (between 1 and
GetNumRaidMembers()); matches the numeric part of the unit's
unitID, e.g. 21 for
index2- Index of the other raid member (