Shelly BLU Wall Switch 4 frame for Schneider exxact.

DK version ( lower module in picture with double frame) Remove original frame (2pcs) from the wall switch, click module (button) into the frame and press into place. Use a bit of tape to secure, but should not be needed. (i can barely get mine out without tape) 

Normal Wall switch (picture in my hand): remove back, click the module into my frame.

This was primarily tought to be used for Wallswitch DK but during my testing i noticed the BLU Wallswitch will also fit, not as ingressed but it will work. (see images) 

print upside down on smooth PEI for best result (i used tree supports for inner part support)