WooCommerce Bookings

Add a return filter to programatically modify the returned Tool Tip information in the Admin Calendar.
Would allow additional data regarding each booking to be viewed “at a glance”
Example: line 230 includes/admin/class-wc-bookings-calendar.php

return apply_filters( ‘woocommerce_admin_calendar_tool_tip’, esc_attr( $return ), $booking );