Yes, several tickets can be purchased per order process.

During the summer holidays, the Sommercard is NOT valid for the Stoderzinken toll road. You then need a ticket.
During certain times of the year, the Sommercard includes an ascent on the toll road. The Sommercard is then read directly at the barrier.

Coaches and vehicles over 2.5 m high must reserve their access to the Stoderzinken by request.
All information about this under www.schladming-dachstein.at/stoderzinken