It may be that it was read, but that no one has read it that can help you. This is a users helping other users forum.
The best help that I can offer is to point you to additional documentation, there is a section on this page that covers adding mutliple markers near the end of the page. https://www.advancedcustomfields.com/resources/google-map/
There is also another post on it here, but it’s quite old so I don’t know if there’s anything in it that would be helpful https://support.advancedcustomfields.com/forums/topic/multiple-post-points-on-google-maps/
