Crossfire/dual graphics is not possible with the R7/RX560.
Connect both monitors to the 560(but you should first get it running with only one monitor connected).
Check your motherboard manual for bios settings to change to display from the 560.
Not sure if 560 is vr capable ?
My PC- Ryzen 5 5600x, B550 aorus pro ac, Hyper 212 black, 2 x 16gb F4-3600c16dgtzn kit, NM790 2TB, Nitro+RX6900XT, RM850, Win.10 Pro., LC27G55T.