Hiding notification panel automatically.

Related products: Web and Windows GUI

Is it possible to make the panel (in which notifications are to be displayed) automatically hidden when there are no more notifications. This is annoying because every time when you get a message in the panel, the panel rises and takes up screen space. Then, you have to empty the panel first before you can hide it again. I'd like to be able to make the panel disappear immediately after emptying.
Information panel is now collapsed automatically when all messages are removed from it.