GUI-O Documentation Assistant

How does GUI-O work? How do I create a toggle widget? How do I change position of a toggle widget? Create a red label with text 'Hello from GUI-O!' How do I use real-time clock? How do I use audio player? I am sending commands to GUI-O, but nothing happens! Is command '|BT U:tg1 X:50 Y:50' correct? How do I clear the screen? How does GUI-O handle widget scaling across devices?