Many thanks for your kind reply . Yes , I did already try the 3R installer , it is in a very basic state of development , very clunky , user-unfriendly and I gave up after not being able to get the garage door tilt sensor to link up to the MZ1 . It would have been better if 3rdReality had just simply improved the original app so that it could bring together Matter and Zigbee devices …. after all , that is what the MZ1 is supposed to do !