Aqara S1+ Magicpad Spacer

I was replacing my lightwaverf 2-gang automated light switch with the Aqara S1+ Magicpad. I already a neutral in the box but the wall box is a UK 2 Gang Box and not quite as deep as required in the Aqara S1+. This mounting frame screws into the back box and the Aqara mounting plate screws on top allowing the Aqara S1+ to fit neatly. I used a threaded brass heat inserts for the middle screw for reliability; the other screws thread into the back box. In the picture I printed the mounting frame in Prusament ASA Signal White. I have provided two versions, one with ears to reduce warping when printing with ASA. The ears snap off easily.