Yea that's one of them.
I can't remember them right now, but you can easily learn them by adding an action and activating a test script with it which has the following
_pass1 = _this select 0
_pass2 = _this select 1
_pass3 = _this select 2
_pass3 = _this select 3
;and so on
hint format ["%1\n\n%2\n\n%3\n\n%4",_pass1,_pass2,_pass3,_pass4]
exit