This is an old post, but I ran into a similar issue myself today, and as the error suggests, the correct syntax is to not use parentheses:
XDocument.View.ExecuteAction "XCollection::Insert", "lotBreakdownRT_41"
alternatively, you can precede the statement with the Call keyword and use parentheses:
Call XDocument.View.ExecuteAction("XCollection::Insert", "lotBreakdownRT_41")
For more information, see:
http://blogs.msdn.com/ericlippert/archive/2003/09/15/52996.aspx