It seems that the field "Outside Reveal Depth" has no effect in OS:WindowProperty:FrameAndDivider.
I have run multiple simulations changing this value with no change in the results.
In this thread: https://unmethours.com/question/8008/window-frame-and-divider-in-openstudio/ it is said that this field was added to the openstudio in order to offset the OS:SubSurface vertices to model the additional shading provided by the outside reveal surface, but when I modify this Outside Reveal Depth I can't see any difference nor in the Zone Total Window Transmitted radiation neither in the subsurface vertices coordinates in the idf file.