Cym thank you for the macro! I mostly pvp and modified it a bit for my playstyle, but you did all the work. This is for atonement that won’t drain all of your mana too quickly. Couple of problem areas are sometimes pet and / or Shield will cut off 3rd penance; pause till 2nd bolt usually works. I use talents 1,2,2,3,1,1,3. Make sure you change the @Zayni lines to your character’s name. 
Sequences['80sDisco'] = {
-- This Sequence was exported from GSE 2.2.03.
Author="Kaiyanwang@Saurfang",
SpecID=256,
Talents = "1113113",
Help = [[INT>HASTE>MASTERY>CRIT>VERSA]],
Default=1,
MacroVersions = {
[1] = {
StepFunction = "Priority",
LoopLimit=15,
KeyPress={
"/targetenemy [noexists][dead]",
},
PreMacro={
},
"/castsequence [harm, nodead][help, @Zayni] Power Word: Radiance, Purge the Wicked",
"/cast [nochanneling] Smite",
"/cast [nochanneling] Penance",
"/cast [nochanneling] Light's Wrath",
"/cast [@Zayni] Power Word: Shield",
PostMacro={
},
KeyRelease={
"/cast Shadowfiend",
},
},
},
}
I also have modified one of your healing macros, but I am not too great at it. I use Vuhdo, under spells tab, Misc, Miscellaneous, click target. This will enable the mouseover targeting and then I just put the macro name under down wheel and spin away. That said I am not a very good PVE healer, but you enabled me to be decent and I wanted to thank you for that. Thank you.
Sequences['RollerDisco'] = {
-- This Sequence was exported from GSE 2.2.03.
Author="Kaiyanwang@Saurfang",
SpecID=256,
Talents = "1113113",
Default=1,
MacroVersions = {
[1] = {
StepFunction = "Priority",
KeyPress={
"/castsequence [@mouseover,help,nodead] reset=target Power Word: Shield, null",
},
PreMacro={
},
"/cast [@mouseover,help,nodead] Power Word: Shield",
"/cast [@mouseover,help,nodead] Penance",
"/cast [@mouseover,help,nodead] Plea",
"/cast [@mouseover,help,nodead] Shadow Mend",
PostMacro={
},
KeyRelease={
"/cast [harm] [@targettarget, nodead, exists] [@focus, nodead, exists] [@focustarget, nodead, exists] Light's Wrath; Light's Wrath",
},
},
},
}