Hello @furiusj
Thank you for your inquiry.
You have the possibility to benefit from the Swiss Travel Pass for your 3 days stay in Switzerland. You can find more information and the area of validity here.
As you can see on the area of validity, the Swiss Travel Pass does not give you a discount for the funicular in Stoos. For more information about the Stoosbahn, please visit www.stoos.ch
Trains from Amsterdam to Zurich and on to Munich are market price trains and must be booked in advance (as seat reservation is mandatory depending on the train). You can find your suitable train connections at sbb.ch. Most bookings can already be purchased online - please note that the purchase is an e-ticket and not a pick-up. If you have any questions, please do not hesitate to contact our telephone support on 0848 44 66 88 (CHF 0.08/min).
You can find more helpful information for traveling in europa here.
I wish you already a lot of fun during your trip in Switzerland.
Kind regards,
ZoeS