For a healer you would need to configure it and I will mention that at least for me the config portion of vuhdo was disabled so you would need to turn it on before you load your character.
Hope it helps!
----Vuhdo is about the same annoyance factor as Grid when setting it up. Maybe a little more due to the extra stuff it can do.
You won't have to configure it though, it comes ready to go. Unless you want to change it for healing purposes, et