I'll be getting the Bern Oberland Pass for our time based in Lauterbrunner and Murren - the thing is, the distance from Luzern to Interlaken is covered by the BOP, according to their new validity map:
https://www.berneseoberlandpass.ch/assets/Uploads/BLS-BO-Pass-M-26-WEB.pdf
Therefore, will I need to pick up a Zurich to Luzern ticket only? (either at full or half fees, not sure yet, haven't decided if I'm getting Half Fare Card yet for the other Swiss travel), Then let the BOP take care of the rest of the trip? If that is correct, would I just stay on the same train - showing the regular ticket when the conductor comes by outside Zurich, and then the BOP outside Luzern?
Thanks in advance..