Teac GigaStudio 4 - Manual (Page 17)

GigaStudio 4 Reference Manual 17
If the component is docked, click on the X in the upper left corner, above the name label, of the component you
want to hide.
In the View menu, you can check (show) or uncheck (hide) the MIDI Mixer, DSP Station, Loaded Instruments
Pane, and Keyboard Pane.