Please add a selection to Deep Sky Display in Sky Safari to select and show individual catalogs or all catalogs. Messier, PGC, NGC, Sharpless, etc should be individually selectable. Currently only all catalogs are shown. I use Sky Safari to find objects to image. And essentially some catalogs like Sharpless are invisible below magnitude 14. When setting to magnitude unlimited there's suddenly a million objects completely obscuring where you might find specific catalog items making it very difficult to find specific objects. But if you could turn off other catalogs, or turn on only specific catalogs, then it would be easier to find the objects. This applies to both OS X and iOS versions.
[Feature Request] Please add a catalog selection to the deep sky display options