Drag and Drop

How can I drag and drop more than one widget in runtime?
In my application I want to move two or more widgets (like PtPolygon and PtContainer), but I don´t know how to do anything like a group to move all of them at same time. I did try PtWidgetFamily, but it did not work.
After that I´ll need copy and paste this group, if anyone can help me I´ll be very greatful.