Pattern Swatch Export: For when you need to provide the single tile fo certain print processes.
Perhaps it’s an export option in frequently used toolbar. Or it appears when double tap within the original tile (inside the dotted lines). Also frequently that tile/swatch is a required size for printing. Would be nice to control the tile size precisely.
Currently many folks will do this manually by creating the single tile on an artboard and then testing it with a pattern tool. If it doesn’t work then they return to file make adjustments and repeat test.