custom post type

Hi,
Thanks for the great plugin. I gave a 5 stars to it and shall make a small donation if the following issue could be resolved.

I tried to use mashup to show all the pins listed in my directory website https://promotions-pr.com . The listing is in fact under a special custom post_type called ‘listing’, which contain address field that can render individual google map on the individual listing detail page.

I guess I need some code treaking in functions.php to retrieve geo data from the special post type instead of general blog post. So could you help to guide me thru’ on it? Or if there’s alternative way to do this, please kindly advise too.

my map page is:
https://promotions-pr.com/master-map-view/

Many thanks and have a nice day.
Roger

https://www.ads-software.com/extend/plugins/comprehensive-google-map-plugin/