SiteOrigin – GoogleMaps – closing window with another click anywhere

HI folks,

I need your help. I am using the siteorigin google maps plugin. My client use to show their locations with more information in the windows. But they want following function:

– Click on marker, open the window
– Click on another marker, close other window and open new window
– Click anywhere on the map, close open window

It’s only possible to use mouseover, click, always.

Can you help me, how I can change the sourcecode to get the requested function?
Thanks in advance.

Michael