The solution I posted just uses the VISIBLE property, which is common to pretty much every visual control in Windows.
For getting lists of properties, I generally use http://www.rbase.com/property. I note, however, that the list is not complete for report controls, it only lists the "interesting" controls that have properties more complex than the standard set. As for the standard set of properties, you can figure that if most or all of the form controls have a property then the similar Report control probably does as well. So TOP, LEFT, HEIGHT, WIDTH, VISIBLE, TEXTVALUE are supported for most report controls (although the numbers are reported in inches rather than pixels, as in forms). -- Larry

