[Edit] I have actually been allowed to use the doc names, which makes it much easier but I still think it would be interesting to find out if it is possible.
I have to set a trigger to duplicate content to different branches on the content tree as the site will be in several languages. I have been told that I cannot access the documents by name(as they may change) and I shouldn't use node IDs either(not that I would know how to, after a while it would become difficult to follow the structure).
How can I traverse the tree to insert the new document in the relevant sub branches in the other languages? Is there a way?