Using strobe parameter with Element 2 board.

So, it's been a while since I've been in the booth, and I'm running a show in a local theater. We have an Element 2 board, and SourceFour LED fixtures. I want to create a strobe effect for a brief scene in the show. Not the strobe effect built into the board (which is really a chase), but actually have all of the lights strobe together, to create a strobe as an actor "falls" from a ledge to the stage.

I haven't found a direct explanation on how to do this, but it looks like the feature is built into the fixtures.

My question is: (a) Can these fixtures be programmed to strobe together, and (b) How would I set this cue using the Element 2 board?

Thanks in advance.