CVar raidOptionDisplayMainTankAndAssist

Whether to display main tank and main assist units in the raid frames

Default Setting

 * 1

Possible Settings

 * 0 :Off
 * 1 :On

Changing this setting
In-game, type the following /console raidOptionDisplayMainTankAndAssist setting

Alternatively, you can exit wow, open the Config-cache.wtf file, and add the following line: SET raidOptionDisplayMainTankAndAssist setting