Compared to WoW, there are even more abilities in this game, especially with the build I posted. It's quite difficult for me to remember/use them all, so just work on it and get used to it, over time, you'll get it.
A good time to use Caregiver's blessing would be like say if you got stunned/silenced and the 4 stacks of soothing spray fall off. Use CB and then get your HoTs back up and you'll have some extra shields along the way to help the tank recover.
Unfortunately with there being no addons, there's no Clique. Clique was a WoW addon that allowed you to bind spells to your mouse. So I would have the shield of the ancestors spell (PW:S in WoW) bound to button 4, near my thumb. I would have my mouse over someones unit frame, hit button 4 and I would shield that person. I'd put the cleanse poison/disease spell on button 5 and hit button 5 over someones unit frame to heal like that. It completely solves the targetting issue of having to mouse-click on someones frame and then heal them. Unfortunately it's not in the game...yet!
XI Wiki



