Geofield Map - Filter attachment result by clicking marker
So You have 2 views on the Page 
1 view is the Map 
and another view is the "attachment"

You need to look in to how to use Contextual filters look at the Url Arguments in A view (see https://www.youtube.com/watch?v=aVwclF9TfBo | and https://www.youtube.com/watch?v=zbdQghFj0lU)

A Very Quick Way to get this done is, in your Map View 
add 2 new fields Content id and a Global: Custom text field
then in your new custom field view add

 &lt;a href="/map?show={{ nid }}" class="use-ajax btn"&gt;Quick View&lt;/a&gt;


where /map is the path to your map page, 

Then open your Map FORMAT Settings and scroll until you see 

"MAP MARKER AND INFOWINDOW"
in Marker Infowindow Content from select your new field 

Then save the map view.

Open Your "attachment" view and add a CONTEXTUAL FILTERS

selecting "ID" in the Content Category.

config like

tick Provide default value

Type = Query parameter

Query parameter = show

this will give you



this is not 100% exactly what you want but then you can start to add a  custom js file to target the marker click event and auto trigger the window link - good luck !