I'm not sure if this is already incorporated into the existing version of KORD, but one request from my end would be to add the code "UALX" to the appropriate E and F gates and remove UAL, as United mainline does not utilize that concourse and only uses B and C. Using AIG traffic, it seems that I tend to have almost all mainline aircraft at concourses F and E and very few at B and C. In reality, all regional carriers use E and F while all mainline uses B and C (as well as the international terminal of course). Would be great if possible!