Welcome to the new forum! We upgraded our forum software with a host of new boards, capabilities and features. It is also more secure. Jump in and join the conversation!
You can learn more about the upgrade and new features here.
You can modify some aspects of it from the view menu and options->look and feel menu and you can do other things like open a recipe
or tool in a separate window by holding down the shift key when you open it. However there is no general customization of the entire layout.