Swap channels: normally red LEDs react to channel 2, 4, ... and the blue ones to channel 1, 3, ... . By this option you invert the behaviour so that it is the other way round.
React to all flashes etc: becomes interesting if you have several Simu-LEDs. With this you can set if each Simu should flash separately or if they shall flash always together.
Moonlight colour: Here you can set the intensity of the moonlight (blue+white LEDs together). It won't influence the flashing behaviour.