The above screen capture shows the Disk Triage program with the Graph view, the Drives view and the Analysis File Size by Size view all un-docked and floating over the program.
Both the Input and Output docking areas are configured, when the program is installed, to allow only one window docked into them at a time. This can be easily changed to allow more in the Application Preferences screen. However, allowing more windows to be docked into a limited space, may make it hard to read them - so you are able to undock them and size them accordingly.
To UnDock a window - simply click and drag on the title bar in the docking area and move it to where you want it to be. Note that the program will constantly try to re-dock it into the docking area - so if you hold the Control key down while moving a docked window - it will not constantly try to dock it in the form. It is very nice when trying to position the windows.
To Dock a window - simply drag it over the appropriate docking area. Input forms cannot be docked in the Output docking area - or visa versa.