OK....I'm new to the forum.....AND I'm a Guitar player (I know 2 strikes against me already) BUT heres my question.... I just got a roland xp-30 and I'm trying to split the keyboard. as I read the manual it I follow just fine UNTIL it says press the [common]function key.......I CAN'T FIND THE KEY LABELED "COMMON".....I'm sure its obvious...but not to me!!!!! HELP! THanks a bunch....Bill Hullett