Sorry for the delay in replying, I had to actually work for a while and that got in my way of playing with mSeeYou !!!
You are absolutely correct, that's the way it works which is actually pretty convenient. So, no issue there now.
However, I am left with one issue that I've tried to find an answer to and have been coming up blank. Maybe it's here someplace and I apologize if that's the case, but with regard to USA AIRSPACE files: how do I get a Tim Newport-Piece formatted SUA file (kudos to Tuno at JustSoar.com by the way !!) converted into the .cub format for the SeeYou programs ??