Adding attachments to spots is currently only possible on Mapify's website. To do the following, please visit https://mapify.travel and log in with your Mapify account.
To add a hostel, hotel or Airbnb to your spot, find the spot on your user profile, open the spot by clicking on it and click on the small edit icon (wrench icon) to open the spot edit view. Here you will find a section for adding attachments. Just copy the video’s URL paste it right there.