Hide pois

It’s probably not easy; you might be able to iterate the gpx features and delete them with some custom javascript. Something like in this example here: https://github.com/bozdoz/wp-plugin-leaflet-map#how-can-i-add-another-leaflet-plugin

Once you know the solution, it’s very simple. It took me some time to find it.

(function() {
	function main() {
		if (!window.WPLeafletMapPlugin) {
			console.log("no plugin found!");
			return;
		}

		var maps = window.WPLeafletMapPlugin.maps;
		
		for (var i = 0, mapslen = maps.length; i < mapslen; i++) {
			var map = maps[i];
			map.eachLayer(function(layer) {
				if (layer.options.type == "gpx" ) {
					layer.options.pointToLayer = function (feature, latlng) {
      					return L.circleMarker(latlng, 
          					{"radius": 0 }
          				);
    				};
				}
			});
		} 
	}

window.addEventListener("load", main);
})();