How to click on a Devexpress XtraTreeList View item in Keyword tests

Lot of forms in our application converted to the Devexpress XtraTreeList View. Now I am unable to access the tree items by their name as before. I can able to access the tree list items only by Index which I don't want to use it. When I search online I found a script at the below link but I need a keyword test operation to update the existing keyword tests.