Sorry to rehash, but I'm new to the forum.
Forget the band-plan markers. Hams should know it. If not, they can keep a copy of the ARRL chart on the wall or open on the PC-desktop.
However, the reason I found this is that what would be more useful are user definable vertical frequency markers on the scope. They must be easy to set, clear, and customize for color/width/embedded text/etc.. That way I can quickly mark previous QSOs, distinguish potential QSOs from ragchewers, etc., while I am making the rounds. Heck, I could even mark the bands in big-fat-red vertical bars in case I forget where I am :-)