Developers can customise the behaviour of the plugin through filter hooks. There are some useful filter hooks supported by this plugin, and by Gravity Forms itself.

1. gf_address_enhanced_country_file

   • string $filepath
   • string $country_code
   • return string

   Developers can add their own country and state/province definitions, overriding those provided in the plugin. See the folder includes/countries/ for examples.

2. gf_address_enhanced_smart_states_countries

   • array $countries
   • return array

   Developers can add or remove countries that should be supported for Smart States dropdowns.