Yes, Moto Z2 Play does have multi screen option.
Moto Z2 Play does not have hybrid sim slot but it has dedicated 2 sim card slots and 1 memory card slot.
Moto Z2 Play is available in 2 colors - Lunar Grey and Fine Gold.
Yes, Moto Z2 Play comes with latest Android 7.1 Nougat OS and does support Screen Cast.
Yes, you can use both the Sim cards as well SD card at the same time.