Sorting TreeList

Hi,

How is it possible to sort TreeLists?  When I add rows to the tree list they seem be be inserted into an arbitrary position.  I am wanting to control the position of any new rows that are inserted into the TreeList (i.e. at the top of the table)

Would I have either have to insert the row into the TreeList and then sort the list so the newly inserted row is at the top? Or is it even possible to insert the top level expandable row at a specified position?


Cheers!