Another choice that would make things easier would be to have a check box for the full output window that pops up when running X-12 (the one that starts:)
U. S. Department of Commerce, U. S. Census Bureau
X-12-ARIMA monthly seasonal adjustment Method,
Release Version 0.3 Build 177
This method modifies the X-11 variant of Census Method II
It's nice to have this output sometimes, but I don't need to look under the hood every time I adjust a series; 99% of the time I just close the box, so it would be nice to have the option up front.