Dear @claudiosinopoli,
Unfortunately no, users in WordPress are not a “Post type” and are not fetched the same way as posts do. Also users don’t have a “single page” by default, only an archive page if I remember well. They don’t have a “Title”, “Thumbnail” or “Excerpt” like Posts, for Travelers’ Map to show them.
So fetching data from users is not possible without overriding a lot of code in the plugin, you should hire a developer for that ??
Have a nice day,
Camille