Canceling a "Library Staff" signup
Menu choice "4" ("Cancel Signup") should not be used to cancel a "Library Staff" signup if the "Library Staff" card has been used for many time slots. In order to choose which of the "Library Staff" signups to cancel, go to the "Manual Signup" panel (choice #8 from the Staff Menu), lookup the record for the particular time and machine you want to cancel, then tab to the barcode field of that record and press the space key ONCE to delete the barcode number from that field.