u can only Harmony one of ur party members What u could do is get a 2nd iss which is only buffing harmonys, ie /target char1 /useskill harmony /target char 2 etc ... other way not possible ( not legit ) if ur afk
You can use %party1 ~ %party7. How are you going to know what kind of harmony needs to be cast is up to you They are normally cast before you initiate rebuff. Edit: Play with this - http://www.lineage2.com/en/game/getting-started/how-to-play/macros-and-commands.php