Ok, I don't know what to call this, but I'll do my best to describe it.
You know that big green circle you get on your cursor when you use a targeted AE spell like Rain of fire? Of course you do. Is that manipulable at all? If, for example, I wanted to make an addon that created that circle directly at my character's position at any range I decide to set it at just so I can give myself a visual of the range, is that possible?
Like, let's say you're trying to train yourself to instinctively stay out of melee range of a warrior, but inside of charge range. I want to create a circle around my character with an 8 yard radius that just follows me around until 8 yards is second nature to me. Is that theoretically possible?