User Portlet User Portlet

Discussions
Another beginners question, I'm afraid. I'm working on a demo with lots of controls, and I manage to distribute them Left, Right, Top & Bottom with ControlPlacement. But the Top & Bottom controls stay left-aligned and I would like to center them...
Mine (http://demonstrations.wolfram.com/AsymmetricSpirographs/) contains a bizarre AutoRun sequence that I just put there to illustrate a problem. It’s no good for the end user. There are also some text changes by the editors that are...