Questions about Google Maps screen

@QMcKay @Jesse @emre Hallo everybody i have 2 Questions
i know it Is possible to put in a Post Code in a entity custom field to Auto find an address and calculate the distance to destination using google map,but how to take this 2 values from google map to update sambapos entity custom field?
I have Google Maps screen and when I press the ticket I see the route on the map.
But when I press 2 Tickets or more I only see 1 destination on the route.
How can I get the route for all destinations?
Thanks in advance…