void Start()
    {
        annotationSetupManager  = GameObject.Find("Boss Object").GetComponent <AnnotationSetupManager> ();
        contentActionItemList   = new List <Transform> ();
        TiersByModifiableAction = new Dictionary <string, List <string> > ();
        currentActionIndex      = 0;

        actionList    = annotationSetupManager.ActionList;
        newTierConfig = annotationSetupManager.GetNewTiersConfig();
        tiersByAction = annotationSetupManager.ActionManager.tiersByAction;

        // Tiers not assigned yet
        tierList = new List <string> ();
        GetTiersNotAssigned();

        foreach (string action in actionList)
        {
            GameObject actionStringGO     = GameObject.Instantiate(itemPrefab);
            Button     actionStringButton = actionStringGO.GetComponent <Button> ();
            actionStringGO.GetComponent <SampleItemButton> ().SetItemListText(action);
            actionStringGO.transform.SetParent(contentActions);

            EventTrigger       trigger = actionStringButton.GetComponent <EventTrigger>();
            EventTrigger.Entry entry   = new EventTrigger.Entry();
            entry.eventID = EventTriggerType.PointerDown;
            entry.callback.AddListener((data) => { OnPointerClickActionButton((PointerEventData)data); });
            trigger.triggers.Add(entry);
        }

        foreach (string tier in tierList)
        {
            GameObject tierGO     = GameObject.Instantiate(itemPrefab);
            Button     tierButton = tierGO.GetComponent <Button> ();
            tierGO.GetComponent <SampleItemButton> ().SetItemListText(tier);
            tierGO.transform.SetParent(contentTiers);

            EventTrigger       trigger = tierButton.GetComponent <EventTrigger>();
            EventTrigger.Entry entry   = new EventTrigger.Entry();
            entry.eventID = EventTriggerType.PointerDown;
            entry.callback.AddListener((data) => { OnPointerClickTierButton((PointerEventData)data); });
            trigger.triggers.Add(entry);
        }
    }