During my Matisse demo in Javalobby expert presentation
I used one trick I'd like to share with you. Thanks to William Beebe for pointing out this is harder to discover.
You can use the Shift key to place multiple components into the form. This way you can insert many components of the same kind without having to go to the palette and back. It's a small tip, but may save some mouse movements. We are all lazy to some extent, aren't we? ;-)