About night vision
When using e.g. displayport 1 as daylight image input, and displayport 2 as night vision input, this option make it possible to swap these two channels in the image processing in order to synchronize with the NV goggles.
When using e.g. displayport 1 as daylight image input, and displayport 2 as night vision input, this option make it possible to swap these two channels in the image processing in order to synchronize with the NV goggles.
Click on the gear wheel icon to toggle the Swap channels setting.

Disabled: no swap will take place between 2 channels.
Enabled: a swap will take place between 2 channels.