Added a usable pet attack macro, also in main post now too.

Code:
/assist target

/petattack

/target [target=Kuolemaa, nodead, help, exists]; [target=Kuolemaa,
nodead, help, exists]; [target=Kuolemaa, nodead, help, exists];
[target=Jonika, nodead, help, exists]; [target=Kuolemaa, exists]
Space is an issue in this
macro,I would have liked to use the "Big Button" logic for the assist
but I ran out of room, so you assume your Brain is targeted hence the
/assist target

Next is your /petattack, this could be any pet command

Last I do the full "big button" target on the off chance you brain has
died while you are clicking this button. You could also do a
/targetlasttarget here.