Hi George & Mike, I used to have Encore from the very beginning (1989 or 90) and when Passport folded I switched to Overture 2, which I’ve been using ever since. That’s just for background info.
Regarding hiding measures, it’s very easy in Overture is to select a measure’s content and make it invisible, but the staff lines remain visible. To blank out a measure or measures you can also do that in Overture using the Graphics tools and drawing an opaque rectangle with no borders over them. You can then even add some text to a measure (instructions, for instance).
John