Targetting heals

As a cleric, there is a single-target heal spell. I have been able to use it by pointing my mouse over my teammate and pressing the bound key. Is there a way to target this heal other than by pointing at a teammate? I ask this because sometimes there are a lot of teammates standing next to each other and it becomes hard to target one specific teammate.

If you target someone and hold ctrl, your camera and targeting will follow them until you release ctrl. Then if you cast a targeted ability, I believe it will hit them.

I just tested this in town with Healing Word, and it seemed to work fine. Hoping that translates to dungeons.