Password.h library, user inputted pass code. and subsequent code display

I've written a little lock program using a 4x4 matrix keypad, lcd screen and password.h library. All works fine multiple users can type in their code and lock and unlock the system. I now want to make the system a bit more user friendly and allow the option to change user codes on the fly and store them on the eeprom. The problem I'm having is how do I change the hard coded passcodes and what is the best way to then display them on the lcd screen after modification.

I have tried searching through the forum but not found any answers, any help will be gratefully received

yours

Ian

hi 1. remove all hard coded data 2. save it in eeprom