Filter that adds, removes, or edits entries in the geofilter location list (each with text/lat/lon) — the right hook for extending the built-in city list in code.

Filter that replaces the entire geofilter location list — the delegation point for sourcing cities from elsewhere (as mam-geodirectory does). Use mam_wc_geofilters_locations to merely add or remove.

Filter that overrides the geofilters on/off decision in code, after the plugin has read the role and settings — force the location picker on or off programmatically.

Filter that overrides the default geofilter search radius (in miles) in code, before the app applies it — set a programmatic default distance.