According to the instructions, 7.2 cannot be combined with Dolby Atmos speakers. With 5.2 it works, then two Dolby Atmos are connected to "Surround Back L/R". But I don't see any way to connect four Dolby Atmos speakers.

So for a 5.1.4 setup you need a receiver with 9 channels, e.g. Denon AVR-X4500H. On the homepage, the manufacturer writes about the previous model of the X4500H: "Most remarkably, the 9 channel amplification allows for setting up a 7.1.2 or 5.1.4 3D experience without the need of an external amplifier. This is not possible with this receiver.