I have the following formula that is currently giving me a list of unique names based on a condition in cell E2:
{=IF(COUNTIFS('MASTER ATTEND'!$A$10:$B$242,$E$2)<ROWS($B$10:B10),"",INDEX('MASTER ATTEND'!$O$10:$O$242,SMALL(IF($E$2='MASTER ATTEND'!$A$10:$B$242,ROW('MASTER...