Document Tree in the Admin

How can I keep the left hand document tree from collapsing over and over?
I want to keep it expanded all the time!

Thanks...

Haven´t found a way... anybody knows???

If you could try explaining in more detail what you mean, others can offer some advice.

Thanks for the quick response...

In the manager, there is a document tree on the left hand.
The tree can be expanded or collapsed clicking at the top icon/buttons on top.

The tree automatically collapses when a doc is saved, created, copied, etc.
I would like to know if there is a way to have it expanded all the time while I
develop the site so I do not have to click the "expand tree" button every time after
I finish doing an action with the documents.

Thanks in advance....