[Plugin: Basic Google Maps Placemarks] Shortcode

Hi
I have been using this plugin for good time now. Thanks for making it.

Question:

What i’m trying to do is add long/lat as custom fields inside a post and then make [bgmp] shortcode to fetch those co-ordinaties and render the map, but i am unable to achieve it as i’m not sure if its possible.
something like this.
[bgmp-map longitude,latitude]

Is it somewhat achievable?

Thanks!

https://www.ads-software.com/extend/plugins/basic-google-maps-placemarks/