Category Lists keep closing

Is there any way I can keep the category list open while working in admin.

I need to add hundreds of categories and sub categories.

After adding and updating one, click on save and I'm taken back to the root again.

Then have to keepclicking on the + buttons to open them.

It would be nice to have all the categories list always open, then it's just a case of scrolling down to the one I want to work on.

Cheers all