Thank you for your answer.
Then I have another question.
I’m considering to choose between the following itineraries
Colmar-Basel SBB (TER)
Basel SBB-Bern (IC 61)
Bern-Lausanne (IC 1)
Lausanne gare-Lausanne Ouchy-Olympique (M m2)
Lausanne Ouchy (lac)-Thonon-les-bains (Batan2)
Colmar-Basel SBB (TER)
Basel SBB-Bern (IC 61)
Bern-Genève (IC 1)
Genève-Annemasse (RL3)
Annemasse-Thonon-les-bains (TER)
If I purchase separate train tickets for TER and RL 3, can I use the Saver day pass for the rest of the trip including the bateau on the Lausanne Ouchy (lac)-Thonon-les-bains (Batan2) section?
Sincerly
Inessa