The current raidtool is a bit cumbersome to work with, and I think its usability can be improved. For example: give the raid leader the ability to drag-n-drop a player from one group to another(or from the groupless bottom). If you drag a player on top of another player in a group you simply get the other player in you mouse instead. Just like we can drag-n-drop items in bags, and move items from slot to slot. Locking/unlocking the raid, should be implicit and automatic whenever the raid leader grabs a group-member with the mouse and releases him again.