Need help for Power Auras for Invocation

[PyroVK]

I've tried Weak Auras... But I just like Power Auras better
Anyways, how do I make it so that my aura activates when there's about 10 sec before buff expires? Could I also do this with Rune of Power?

[-Raer-]

Under Timer there is a slider at the bottom Hide Aura and Timer Above:X slide it to 10 and it won't show up until the buff is 10 seconds or less. By default it's set to 0 which disables it.

[PyroVK]

that doesnt work
i think doing what u suggested hides any the buff if its total duration is above 10 sec. setting it to 0 ignores that and shows a buff with any duration.