How can I become an editor for the area of Liberia Guancaste Costa Rica?
Welcome to the forums! If you have recently driven in the area with the app open, you should be able to start making suggestions to the map right away. I would recommend posting in the Costa Rica forum to get help from local editors.
Moved to the correct forum.
You need to complete the Application form for self managed countries and submit the polygon in the area where you want to request edit permissions.