Hi krisrunner
At my first impression, I would probably tell you about the Swiss Travel System. All the information you need about it can be found here.
However, so that we can be sure and advise you correctly also on tourist trains such as the Gotthard Panorama Express, please call us on 0041 848 44 66 88 (0.08/min) or, if this number does not work, on 0041 51 225 78 00.
I wish you all the best. EllenvS.