21:9 Widescreen Resolution

Hi, awesome game 100+ hours in. Option for 21:9 resolution would be great. Currently playing at 7840 x 2160, Wicked sees and works with resolutions showing in the Nvidia driver. Unfortunately, 5120 x 2160 is not a resolution I can select, not available in the NVCP panel. An option to just cut the left and right edges off from full screen resolution.