AgentPress Listings - change sort order to be by state. In CPT, this is 'listing_state'

APL-sort-listings-archive-state.php

//change sort order to listing_state in main query
add_action( 'pre_get_posts', 'gsc_listing_state_sort_order' );

function gsc_listing_state_sort_order( $query ) {
	
	if( $query->is_main_query() && !is_admin() && is_post_type_archive( 'listing' ) ) {

	$query->set( 'orderby', 'listing_state' );
	
	}
 
}