AddToMyBoxMethod

This method copies a file publicly shared by someone to a user's mybox. 'file_id' and 'public_name' params identify a publicly shared file, you should provide either file_id or public name (like '31nhke0ahp') as a parameter. 'folder_id' is the id of a user's folder, where files are to be copied. On a successful result, the status will be 'addtomybox_ok'. If the result wasn't successful, the status field can be: 'addtomybox_error', 'not_logged_id', 'application_restricted', 's_link_exists'.