IKEA BILRESA Wall Switch Adapter (European 60mm)

This models allows you to put the BILRESA PCB into a standard wall switch with 60mm wide screw holes

It works best with keyboard switches (for the springy feel). This is the ones I used 
You can put 2 switches on each side. But at the end to save some money I put only one. It was sufficient. 

You have to open the BILRESA to extract the PCB and screw it into the new frame (using the original screw). 

I recommend cutting the matter QR code from the manual and gluing it into the new frame. 
At the moment you unscrew the PCB you'll have to keep track of the corresponding code or original case.