We would like to develop hierarchies for viewing layers in our ArcGIS Server based IMS. The best solution to do this has been so far to create groups and sub-groups in ArcGIS Desktop before publishing services. However, with this approach we cannot create groups under single items (shapefile/feature class/raster). We would like to do this as it would reduce the amount useless groups and thus useless headers. Is this possible and how could it be done?
I might also be on completely wrong tracks, when I try to do this in Desktop before publishing the service. Feel free to share if you have any other approaches.