This macro is a good OH CRAP button that will pop trinkets and use Synapse Springs on gloves if you’re an engineer. If you try to use it again while any of those are on cooldown, it should not print an error message on the screeen. You will still be able to hear the error sound file “That spell is not ready yet” but that cannot be helped as far as we know.

#showtooltip
/cast Ancestral Swiftness
/use 10
/use 13
/use 14
/y Let the Hendlove heal you!
/cast [@mouseover,help]Greater Healing Wave;[help]Greater Healing Wave
/script UIErrorsFrame:Clear()

Mentioned in Episode 31.