GIMPshop allows the menus on the interface ro be undocked, which allows quick access to the tools within them. Say you want to use the Xtns menu and some of the scripts in it. Click the Xtns menu and click the dotted line on top of the menu. The menu will then undock from the menu. You can move it to the side and access all the features directly from there. If you right click on the image you're working on, a separate menu with all the items in the standard menu on top will be displayed, which can also be undocked.