This might be really obvious and basic but Im only new to Illustrator. U can use the Adobe Type Manager for add or remove fonts easily.
It's possible in OS X to add fonts to just the Adobe programs, or even just to Illustrator, though I don't know why you'd want to. If you open the.
Install fonts in Illustrator CS with help from an expert with over 20 years of experience in Photoshop and Adobe.