Add ability to toggle "on/off" by checkboxes

For example I have a character that’s Barbarian with path of the Storm. This makes it so when I rage (which i made into a checkbox that applies the bonuses to my attacks) i also get an aura that zaps a baddie within 10 feet of me with lightning at the end of my turns.
Would be nice if I didn’t have to separately turn up the aura intensity to full each time I went into Rage, and turn it back down to 0 when I went out of Rage.

@Smrt, would you kindly edit the title of your post so that it mentions an Aura? It will make finding your Feature Request easier.