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/* Hide Advanced Search Button */
.listings-search-advanced-toggle {
    display: none
}

<?php

/**
 * Show advanced search fields by default
 */
add_filter( 'wpsight_get_advanced_search_fields', 'custom_get_advanced_search_fields', 11 );

function custom_get_advanced_search_fields( $fields ) {
	
	$fields_advanced['min']['advanced']		= false;
	$fields_advanced['max']['advanced']		= false;
	$fields_advanced['orderby']['advanced']		= false;
	$fields_advanced['order']['advanced']		= false;
	$fields_advanced['feature']['advanced']		= false;
	
	return $fields;
	
}