Keypad .kstate question

OK NEW Question, Might be simple Might be impossible..

Anyway I am now working on a program to run different Arrays based on Different triggers on the TeensyLC so what I am wondering is if it is possible to Convert made Keypad into a Keypad of a different Name.

So Say use :

Keypad PSbutton28 = Keypad( makeKeymap(button28), B28rPins, B28rPins, PSROW4, PSCOLS);

to make a 4x7 matrix of 28 buttons is it possible to then later in the program change it's name to be PSbuttons..

i.e. but doesn't work apparently.

PSbuttons = PSbutton28;

I can do what I want the long way by having a completely separate if loop for each combination but that can get really long on the program so I am hoping to be able to consolidate the detection functions by changing the Matricies that are presented to that detection program by doing an if statement to change the wanted matrix to a common name that would then be what is used to detect the button presses and everything.