You choose which onRelays to fire. Just insert the number, or numbers of those relays.
onActivate > Self > fireRelayNum > 1 Brick
onRelay > Self > setColor > <blue>
onRelay > Self > setColor > <white>
The brick will be colored blue.
You can also insert multiple number, like: 1 5-7 9 11 15-17
That will fire the relays on: 1, 5, 6, 7, 9, 11, 15, 16 and 17.
The list is the direction of the event where Brick is the default current brick.
"If the event does not come to you, you come to it."