Show all marker series in map, if drilldown is enabled - Interactive Geo Maps

show.js

// added this control check, in case code was added more than once
if (typeof mapCode === 'undefined') {
    let mapID = 159; // CHANGE MAP ID HERE
    let mapContainer = document.getElementById('map_' + mapID);
    mapContainer.addEventListener('mapready', function(ev) {
        iMaps.maps[mapID].series.forEach(function(serie) {
            if (serie.className === 'MapImageSeries') {
                serie.show();
            }
        });
        iMaps.maps[mapID].map.zoomControl.children._values[0].events.on('hit', function() {
            iMaps.maps[mapID].series.forEach(function(serie) {
                if (serie.className === 'MapImageSeries') {
                    serie.show();
                }
            });
        });

    });
    var mapCode = true;
}