You'll have to check the "Add/modify" in the Organizer (or the Catalog Management window) before opening Ingest. Auto-catalog adds images to the catalogs where Add/Modify is checked.
With that said, good keywording or collections in a single catalog would probably be a better alternative to having multiple catalogs. If all your rugby photos get the keyword "Rugby", a Quick Search of "Rugby" would pull them up immediately without the need to disable the "Search" box on up to 3 other catalogs, and you can save a search with the little flash bulb icon next to the Quick Search bar, so you can quickly bring up a saved search rather than enabling and disabling the various catalogs.