Your post is very confusing.
Please summarize in a list what GPU's you have and what monitors/connections are being used on each, and what settings are not available.
Apologies for the confusion Ray.
FX8310 with Sapphire Nitro R7 370 4GDR5 (output 2 x DVI, 1 DP, 1 HDMI)
Dual monitor : Philips 273V 1920x1080 & 20V 1600x900 using both DVI connection
Radeon settings color displays both color temperature and gamma sliders for each monitor.
Ryzen 1700X with Sapphire RX470 OC Titanium 4GDR5 (output 3 DP, 1 HDMI)
Dual monitor: 2 x BenQ GC2870 1920x1080 both on DP to HDMI cables
Radeon settings color displays the screens shot above with no
color temperature and gamma sliders for each monitor.