Hello Whefuerriess88
Not from the webshop. It could be added to the waller from the SBB Mobile app only. Simply save it as PDF on your phone, or use the QR code provided in the purchase confirmation e-mail, or take a screenshot of the QR code.
In any case, please kindly note, you must present your physically available passport or national ID card (or SwissPass if available) together with the ticket.
Kind regards,
Roland