The way the system was designed, it shouldn't be possible to turn off shaded when photo is on. I don't believe this was controlled before the latest update and before that, the option was just broken.
The Topo Rasters are always just pooled with Shaded Relief Rasters for the unit.
The RNC Rasters are pooled with Shaded Relief Rasters for most maps because of a history of how a few maps were created. The best fix at the time was to create a positive exception on newly generated maps when we desired behavior other than using the RNC Rasters as a base layer.
Despite the "Raster" option being available when used with At5 Major Version 14+ RNC Rasters, it doesn't control anything unless the RNC Rasters are set with a "DVOR=true" option in the description string (like the Manufacturer and Description is done). The "Raster" option being available when it doesn't control anything and the At5 Major Version 14+ restriction will be eventually fixed for units still receiving updates. Until this fixed, do not use At5 Version 12/13 RNC Rasters with the "DVOR=true" option set...they will be controlled by that Raster button but the Raster button will not be available.
Note: Major Version 14 isn't available on V0.7.4.0. It will be available on the next public release.
