How many passengers can be booked at one time on the JR WEST ONLINE TRAIN RESERVATION system?

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• Can I reserve a seat when booking on the JR WEST ONLINE TRAIN RESERVATION?
• Can I apply with a credit card under another name to reserve on the JR WEST ONLINE TRAIN RESERVATION website?
• How many minutes prior to the train departure time can I book on the JR WEST ONLINE TRAIN RESERVATION website?
• Are there restrictions on the regular tickets used with the discount tickets (limited express tickets) booked on the JR WEST ONLINE TRAIN RESERVATION website?
• What is the "Identification Number" required to pick up a reserved ticket, when purchased on the JR WEST ONLINE TRAIN RESERVATION website?