How to Disable or hide the form name in Form Selector

Hello Experts, I would like to hide or disable the form name inside form selector. For that i am doing as below.

function hideAddInfoForm()
{
var addFormId="9ff2b534-0731-4a94-94d3-883d4f4d951e";
var items = Xrm.Page.ui.formSelector.items.get();
 for (var i in items) {
  var item = items[i];
  var itemId = item.getId();
  if (itemId == addressFormId) {
  item.setDisabled(true);
     }
  }
}

i am getting error that the setDisabled() method is not supported. I checked there is no such method for this object.

i can hide the selector but i want to navigate other forms also except only one form.

Please suggest how i can do it.

Thank you

---

saroj