Add new permissions?

I added these permissions to the
wordpress/wp-content/plugins/wordpress-social-login/hybridauth/Hybrid/Providers/Facebook.php file:

public $scope = "email, public_profile, user_friends, user_location, user_hometown, user_likes, publish_actions";

However when I go to register a new account through facebook, in the wp_wslusersprofiles table, under the “country”, “region”, and “city” columns, it’s blank…

try this filter to add extra permissions: wsl_hook_alter_provider_scope

https://miled.github.io/wordpress-social-login/developer-api-snippets.html#collapse_lowerscope

Where is the best place I should use this?
Which file?

Sorry I’m just not really sure where to use filters.