List of filters included in the WC Pickup Store plugin. Check for filter availability in the plugin source code.

wps-filterts.php

<?php
/**
** Add new content to be displayed in the template of
** store information in the Checkout page
** v1.5.23
** author: @keylorcr
**/
function keylorcr_wps_stores_fields($the_fields) {
	foreach ($the_fields as $store_id => $value) {
		$the_fields[$store_id][] = array(
			'key' => 'content_info',
			'value' => apply_filters('the_content', get_post_field('post_content', $store_id))
		);
	}

	return $the_fields;
}
add_filter('wps_stores_fields', 'keylorcr_wps_stores_fields');


/**
** Mapping custom fields for the Checkout template
** v1.5.22
** author: @keylorcr
**/
function kmchild_wps_get_store_custom_fields($fields) {
	$fields[] = 'description';
	return $fields;
}
add_filter('wps_get_store_custom_fields', 'kmchild_wps_get_store_custom_fields');

/**
** Change Shipping and Store details label
** author: @keylorcr
**/
function kmchild_wps_shipping_title($title) {
	$post_data = wps_validate_ajax_request();
	return 'My custom label';
}
add_filter('wps_shipping_method_label', 'kmchild_wps_shipping_title');
add_filter('wps_store_checkout_label', 'kmchild_wps_shipping_title');

/**
** Update WPS shipping costs
** author: @keylorcr
**/
function kmchild_update_wps_shipping_costs($cost) {
	return 75;
}
add_filter('wps_shipping_costs', 'kmchild_update_wps_shipping_costs', 50);