If you're accessing your media from Flickr, Facebook, Picasa or YouTube, the map tour builder displays your tour ready for you to enter the caption for each point in your tour and make additional changes.
If you chose the options in step 2 to specify the URLs of your media manually, or to upload your images into the builder, this is where you can start creating your tour. Use the Add button near the bottom of the screen to add your tour points. The Add dialog prompts you to specify the media, caption, and location of each point.
If you chose the option to import a CSV file in step 2, the map tour builder displays your tour ready for you to make additional changes.
Specify the title and subtitle of your tour by clicking the Pencil buttons in the top left corner.
Optionally, you can change the basemap using the control in the top right corner of the map.
Optionally, you can use the Organize button near the bottom of the screen to manage the points in your tour. It also gives you the option to specify that the first point in your tour will be an introduction for your tour that is not shown as a geographic point on the map. This option is a good way to provide people with additional descriptive text about your tour before they start moving through it.