Adding another option

src/objectliterals.jsdoc

@@ -303,6 +303,7 @@
  *     KML? Default is `false`.
  * @property {number|undefined} maxDepth Maximum depth to follow network links.
  *     Default is 0, which means we don't follow network links at all.
+ * @property {Array.<string>} trackAttributes Track attributes to parse.
  */
 
 /**

src/ol/parser/kml.js

@@ -54,6 +54,8 @@ ol.parser.KML = function(opt_options) {
   // TODO re-evaluate once shared structures support 3D
   this.dimension = goog.isDef(options.dimension) ? options.dimension : 3;
   this.maxDepth = goog.isDef(options.maxDepth) ? options.maxDepth : 0;
+  this.trackAttributes = goog.isDef(options.trackAttributes) ?
+      options.trackAttributes : null;
 
   this.defaultNamespaceURI = 'http://www.opengis.net/kml/2.2';
   this.readers = {