At this time we have depreciated the Facebook app because of lack of use and required development changes. If you want to post your tour to Facebook, simply copy and past the virtual tour URL to your Facebook business or personal page, add some intro text, and post. Facebook will automatically pull back an image and some marketing text.
If you have a Facebook business page, you can then boost the post – buy a paid ad and push that out to a certain area using Facebook’s ad platform. Just know that this would be considered a “Fair Housing” special ad category, and as such, they have removed a lot of targeting capabilities, like target by job title or a specific zip code. You can target by a city, just not a specific zip code.