Google Maps for Joomla 3

On my website, on the contact page, I have more contacts for diff cities. The Google Maps plugin can take only one address, from what I saw.
I want that each contact to have the map for that city or, sec opt, to have all contacts on one map. I tried but I couldn’t make any one of those 2 options.
This is the contact page

and if u click on each city u will see that i have the same map because I can put only one address.
Pls someone tell me how to do one of those 2 options that I mentioned above.