Hi, I know of the existance of (ELEMENTS) to create an index from a list, but I actually would like to index the content of an element of a list. Is it possible?   My scenario: Class: Property Test As list of TestList;   Test.List: Property Name As %String; Property Surname As %String; I would like to have an  index based on the TestList.Name. If I try using Index NewIndex On Test(ELEMENTS) it will create an index with Name and Surname in it, but I just want to have an index with the name. Is it possible?