Calculating the "Current Box"

When Sierra initially displays a checkin card, the system calculates the next expected issue, supplement, or index, and then automatically selects that box as "current." The "current box" is the next box that the system will check in.

The system calculates the current box based on the Status of the checkin card boxes:

If you manually set the "current box," the setting is not retained after you exit the checkin card.