[Zope] dtml-tree - Processes all banches and sub branches? How to Stop this?

Hello, I am using a dtml-tree. The tree automatically queries all open branches and sub branches each time an expansion or compression (the + or -) is pressed. It does this for all open branches, not just the new one I clicked. This is very time consuming for me. How can I have it only query for information from the new branch I clicked, and have it just remember the state of the other banches without re-querying them. I am familiar with "assume_children" and "single", but these dont' really solve my problem. THanks! __________________________________________________ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/