I am creating a custom ribbon and am looking to add the shaded relief command which is typical located in Imagery >Raster functions > System> Surface options. Using the All commands search option within the customize ribbon dialog box an option for shaded relief is present. Upon adding it to the ribbon the command is grayed out. But navigating directly to raster functions > shaded relief the command works fine.
Why would this be grayed out?
Is it possible to add this functionally to a ribbon?