In the text you quote, "members" would be "properties and methods".

>
>Again, the help text says "Properties and methods designated as Hidden
>can be accessed only by other members in the class definition"
>
>The form is a class definition, and the button is a member of it. Accorordingly,
>the button should be able to access anything on the form, regardless of the
>visibility of the PEM on the form.
>