I just discovered an amazing feature that I was hoping that kodi/osmc could pull of:
By using the video calibration together with the remove black bars function I was able to view tv shows with aspect ratios of 2:1 in full resolution like this, I created a different profile with a different video calibration settings that will be used when watching tv shows with this aspect ratio, like this:
This is useful for those who have a projector with an anamorphic lens and a cinemascope screen.
The LXB function in my projector only works for viewing 2.35:1 cinemascope, but its does not work for 2:1 tv shows, it crops the pictures too much, so this solution solves this problem and it is not required to use a projector with motorised lens to view 2:1 tv series.
Perhaps this is not useful for many people but those who has a projector and cinescope screen will benefit greatly