code: function createNew (e) {
        outline.UserInput.clearMenu()
        var selectedTd = outline.getSelection()[0]
        var targetdoc = selectedTd.parentNode.AJAR_statement.why
        var newTerm = kb.nextSymbol(targetdoc)
        outline.UserInput.fillInRequest('object', selectedTd, newTerm)
          // selection is changed
        outline.outlineExpand(outline.getSelection()[0], newTerm)
      }
docs: called when 'New...' is clicked(eventlistener) or enter is pressed while 'New...' is highlighted