Sure thing! You can re-work your spells if you want. Maybe you have one category called "Fire Spells" and the fire spells could be a ring, or a fireball, or anything else you can think of. And then you have a separate category called "Wind Spells" and it could be a blast of wind, or a whirlwind, or anything else.
When you decide, just go ahead and update your character sheet entry.