Double click the icon for the chat sidebar. It will become a floating window. The same is true for the Jukebox. Any character sheet our journal can also be popped out by clicking the little icon in the upper left corner. They can be positioned anywhere, but you will lose some functionality. Drag and drop from the compendium will be lost, though depending on your game system, this may not be an issue. Also, some things might require a double click: one to activate the window you want, and a second to actually click the button or link. There are other quirks, but you will discover them as you go along.