@stéphane-de-greef The moderator supports only Google Maps, we are using Map Box in the Tools section so we mitigate the usage cost Google Maps API has.
I understand your point. The thing is right now our focus is not on the Moderator but on the Overlay Editor, and we have no idea when we will go back on the Moderator. But when that will happen allowing you to switching between OSM and Google will be an option.

@rajat-bhargava The navigation should be visible now, Google had some delays on displaying the navigation in Feb-Mar, but all should be OK now

@Alexey-Sklyarov for when the tour get's stuck you need to contact GoThru support@gothru.co (for now)

@stef-s-photography Yes, that is possible. Follow this tutorial https://docs.gothru.co/main-workflow-for-gothru-tour-creation-and-moderation/ and jump over Step 3