In 4.3.4 I use a mouseover macro, to either heal me, the focus, the target or the mouseover (on pretty much all my healing spells). Now in PTR, all the same macros work perfectly EXCEPT for HW:S. This is how it should work:
The macro kinda work (it does cast the spell) but the tooltip doesn't work, it's greyed. I don't see the cooldown, so it's hard to say when it's available. How can I make this work in ptr?
Try using Holy Word: Chastise in your macro instead, it automatically converts to the spell for your Chakra. I also recommend using an addon to track the cooldown, like Weak Auras which is working on the beta.
I tried Chastise, and it works the same, I can use it to cast the HW:S but the button still don't highlight. Maybe a ptr bug I guess... As for cooldowns, I use OmniCC, which helps alot!