0 X OnActivate > self > FireRelay
1 X OnRelay > self > FireRelay
2 X OnRelay > self > SetLight > (any light here)
3 X OnRelay > self > ToggleEvenEnabled > 2 4
4 OnRelay > self > Set ight > NONE
I haven't tested this, but I think it will give a brick a blinking light that will keep blinking from the moment you click it.