Display on your minima
A raid group shares a chat channel, experience, loot, instances, and raid Sword of the New World money quests. At the same time, the raid is subdivided into 5-person groups. You will always be assigned to one of these 5-man groups, initially by simply joining the raid which will automatically assign you to a group. After joining the raid, your raid leader may manually reassign and rearrange the groups at any time.
The subdivision has several effects on the members of the raid. Each group can communicate in their own party chat which is only viewable by that group. Only the members of your 5-man group will display on your minima.