Is it possible to use a "[Custom TiledMapServiceLayer][1]" as a Basemap?
Is it possible to show a "Custom TiledMapServiceLayer" in [BasemapGallery][2]?


  [1]: https://developers.arcgis.com/javascript/jssamples/layers_custom_tiled.html
  [2]: https://developers.arcgis.com/javascript/jssamples/widget_basemap.html