Static IP

I am having trouble with a Wasatch Pixels Quad Ethernet Controller with WLED, setting a Static IP for the ethernet NOT the wifi. The only way I have been able to get a static ip is connect to a DHCP router and have the router assign the IP via the MAC address except the “show network” setup does NOt use a DHCP router to save the MAC Adresses… I would like to assign this controller ( and more of them if I can get this to work correctly) their own static IP so they will work correctly from XLIGHTS… any Ideas how to correct this?

William