Metadata JSON navigation

Once you have executed say for example PTC.Metadata.fromId  as shown below you can use just like standard json but the functions provided in the link by @pandersson might be easier 

$scope.$on('userpick', function (event, targetName, targetType, eventData) {

var pathid = JSON.parse(eventData).occurrence;

try {
PTC.Metadata.fromId(targetName).then((metadata) => {

var displayName = metadata.get(pathid, 'Display Name');

CURRENT_OCCURANCE = pathid;

resetHighlight();
var itemArray = [];
itemArray.push(targetName+'-'+pathid);
SELECTED_ITEMS.push(targetName + '-' + pathid);

//hilite(itemArray,true);
setColor(itemArray, HIGHLIGHT_COLOR);

doPopup(displayName, pathid);

});

} catch (err) {

console.log(err);
}

});