Can I add multiple groups to a Geo-Map?

Hi all. Our PRTG is setup by physical location. Our tree looks like this:

Probe Server
└-> Site 1
       └-> Internet Service Providers
               └-> Primary
               └-> Secondary
       └-> Network Equipment
       └-> Servers
└-> Site 2
       └-> Internet Service Providers
               └-> Primary
               └-> Secondary
       └-> Network Equipment
       └-> Servers

repeat same as above, 50 deep.

I would like to show on a Geo-Map within Maps (Dashboards) all of the Internet Service Providers Sensors (within Groups) from all 50 sites. To the extent of my research, I can not add but one group to one Geo-Map at a time. Any assistance would be appreciated. Thank you.

dashboard geo-maps groups map map-objects maps