How do I add an AV-Sync stop to my tour?

You are here:

Go to your tour at stop level > click on the stop > choose the tab general (in the top of the page) > check the right square box A/V sync > save. Go back to the stop and click edit trigger > add > show more and choose AV sync IDentifier > fill in the code for the normal mode or the flexible mode.

For the complete info about the AV sync go to