function enableComponentHighDownFeatures(el, componentModel, componentHighDownName) {
  var ecData = getECData(el);
  ecData.componentMainType = componentModel.mainType;
  ecData.componentIndex = componentModel.componentIndex;
  ecData.componentHighDownName = componentHighDownName;
}
Enable component highlight/downplay features:
+ hover link (within the same name)
+ focus blur in component