I need to replace my rubber media keys. Do I need to remove the PCB?

I need to repalce my rubber media keycaps. Do i need to remove the entire top PCB which requires unsoldering and then re-soldering every single key cap?

Or is it possible to remove the bottom part of the chassis and squeeze the rubber keys out/in?

Please tell me i dont have to unsolder every single key cap for such a simple task.