programming 331 keycode to start?

can some one help me with how to program the digital keypad start on a 2007 331. I have the master code the previous owner gave me but don't have a manual and would like to add another code, also If I could change the count down time before you have to punch it in again that would be great? While we are on the topic of the computer system on this machine is there a way to have the aux hydraulics automatically kick on when you start the machine so you don't have to hit the button for aux hyd to use thumb?

thanks