Push the button on the right side. It shifts to the 1st output(RED LED) to the 4th output(BLUE LED), then it automatically resets back to the 1st output. It doesn't use a preset or clear inputs, it automatically resets. It uses 4 basic J/Clear flip flops.
J/CLEAR FLIP
TIME 1 TIME 2 OUTPUT
J+CLOCK + J+CLOCK OFF = ON
CLEAR = OFF