Google карта. Переключение своих точек

<div id="map" style="height: 100%"></div>
<script>
		function createMap(){
			var opts = {
				// center: {
				// 	lat: 59.877516,
				// 	lng: 30.436854,
				// },
				center: {lat: 59.879263,lng: 30.418588},
				zoom: 14,
				styles: [
					{"featureType": "all",
						"stylers":[
							{"saturation": 0},
							{"hue": "#e7ecf0"}
						]
					},
					{"featureType": "road",
						"stylers":[
							{"saturation": -70}
						]
					},
					{"featureType": "transit",
						"stylers":[
							{"visibility": "off"}
						]
					},
					{"featureType": "poi",
						"stylers":[
							{"visibility": "off"}
						]
					},
					{"featureType": "water",
						"stylers":[
							{"visibility": "simplified"},
							{"saturation": -60}
						]
					}
				],
				maxZoom: 20,
				minZoom: 0,
				mapTypeId: 'roadmap',
			};

			opts.clickableIcons = true;
			opts.disableDoubleClickZoom = false;
			opts.draggable = true;
			opts.keyboardShortcuts = true;
			opts.scrollwheel = false;

			var setControlOptions = function(key, enabled, position, style, mapTypeIds){
				opts[key + 'Control'] = enabled;
				opts[key + 'ControlOptions'] = {
					position: google.maps.ControlPosition[position],
					style: google.maps.MapTypeControlStyle[style],
					mapTypeIds: mapTypeIds
				};
			};
			var markers = [];
			setControlOptions('fullscreen',false,'DEFAULT','',null);
			setControlOptions('mapType',true,'TOP_LEFT','HORIZONTAL_BAR',["roadmap","satellite","terrain"]);
			setControlOptions('rotate',false,'DEFAULT','',null);
			setControlOptions('scale',false,'','',null);
			setControlOptions('streetView',false,'DEFAULT','',null);
			setControlOptions('zoom',true,'LEFT_CENTER','',null);
			var map = new google.maps.Map(document.getElementById('map'), opts);

			(function(){
				var markerOptions = {
					map: map,
					position: {lat: 59.879263,lng: 30.418588}
				};
				markerOptions.icon = {
					url: 'https://nachalo-apart.ru/map_icons/Nachalo.png',
					scaledSize: new google.maps.Size(70,70),
					size: new google.maps.Size(70,70),
					anchor: new google.maps.Point(35,70)
				};
				markerOptions.options = {optimized: true};
				var marker = new google.maps.Marker(markerOptions);
			})();

			(function(){
				var markerOptions = {
					map: map,
					position: {lat: 59.877343,lng: 30.441765}
				};
				markerOptions.icon = {
					url: 'https://nachalo-apart.ru/map_icons/metro_peter.png',
					scaledSize: new google.maps.Size(50,50),
					size: new google.maps.Size(50,50),
					anchor: new google.maps.Point(25,50)
				};
				markerOptions.options = {
					optimized: true,
				};
				var marker = new google.maps.Marker(markerOptions);
			})();

			// Инициализация маркеров на карте
			var markers_array = [];
			jQuery.ajax({
				url: 'marker_json.json',
				dataType: 'json',
				success: function(response){
					markers_array=response;
					jQuery.each(markers_array, function(i, group){
						jQuery.each(group.points, function(i2,point){
							var image = {
								url: group.icon,
								scaledSize: new google.maps.Size(33, 38),
								size: new google.maps.Size(33, 38),
								origin: new google.maps.Point(0, 0),
								anchor: new google.maps.Point(16, 16),
							};
							var marker = new google.maps.Marker({
								position: {lat: point.position[0], lng: point.position[1]},
								title: point.title,
								map: map,
								type: group.id,
								id: point.id,
								animation: google.maps.Animation.DROP,
								icon: image
							});
							markers.push(marker);
						})
					})
				}
			});
			// Инициализация маркеров на карте конец

			google.maps.event.addDomListener(document, 'redraw_map_event', function(e) {
				Redrawmymap(map);
			});
			function Redrawmymap(map) {
				filtered = [];
				$('.map-menu a.map-btn-llink').each(function(){
					var $filter = $(this),
					active = $filter.hasClass('activ');
					if(active) filtered.push($filter.data('target'));
				});
				for(var i = 0, length = markers.length; i < length; i ++) {
					var visible = ($.inArray(markers[i].type, filtered) > -1);
					markers[i].setVisible(visible);
				}
			}
		}

		$(document).ready(function() {
			$('.map-menu a').click(function(event) {
				if($(this).hasClass('activ')) {
					$(this).addClass('inactive').removeClass('activ');
				} else {
					$(this).addClass('activ').removeClass('inactive');
				}
				var event = new Event("redraw_map_event");
				document.dispatchEvent(event);
			});

		});
		</script>

		<script defer src="https://maps.googleapis.com/maps/api/js?key=AIzaSyA5R_xci4pjTEsqFk9Cq5FGaThmvLD0rTo&v=3.31&language=ru&libraries=places,geometry&callback=createMap"></script>