Help, I have the programming book in front of me for the Strata DK16 & I don't have a clue on where to start to program! I don't understand how I need to program this phone.

I need to be able to reprogram it for new employees and make the vm lights go off (I can't get my coworkers or the conference room vm light off).

Please tell me where I need to start or how to read this manual to begin programming. Thanks