LCD display - Feed Load/Unload

Ah. But I recently wanted to take 3 spools out of AMS so that I could put in a hygrometer. How then do I tell AMS to retract all filament to allow me to remove the spools? And then later when I put them back in, AMS did not recognize them (i.e. Via the RFID). How would I tell AMS about the newly placed spools?