Update LED or OLED

Is it possible to change what is updated on the OLED or can I control when an LED on the TREK1000 board blinks?
I basically want to control an LED whether its through a GPIO pin or one on the board. If neither of those then maybe the OLED if possible. Thanks

You have full TREK source code, you can modify the output on the LCD, or control any of the 4 LEDs (LED5-LED8).