If you are populating a multicolumn listbox then your code would look something like this:
Code:
ActiveDocument.SelectContentControlsByTitle("Drawing Number").Item(1).Range.Text = .DrawingNumberUf.Column(0)
ActiveDocument.SelectContentControlsByTitle("Rev").Item(1).Range.Text = .DrawingNumberUf.Column(1)
ActiveDocument.SelectContentControlsByTitle("Name").Item(1).Range.Text = .DrawingNumberUf.Column(2)