This addon will create a macro called "AutoKnowledgeMacro," and as you loot Profession Knowledge items, it will automatically update the macro for you to use that item, then it will update to other ones in your bags.
In World of Warcraft healers have to die. This is a cruel truth that you're taught very early in the game. This add-on helps you influence this unfortunate destiny in a way or another depending on the healer's side...