Create custom display mode
The setting Display Mode can be found in the tab "Display". It can be used to change the template depending on the selection.
 
            Add a new value
Add the following code to your Page Ts, either in the field TsConfig in the page properties or better to your site package extension.
TCEFORM {
    tt_content {
        pi_flexform {
            ttaddress_listview {
                sDISPLAY {
                    settings\.displayMode.addItems {
                        map = Map View
                    }
                }
            }
        }
    }
}        
        Copied!
    
Now a new option Map View is available with the value map.
Adopt templates
If a displaymode is selected, this can be checked in the template with {settings..