This is my first time to start to poke around the openEMR code base, and I wanted to know if anyone knew where I could start looking for modifying the appointments module, specifically being able to add a new category for appointments. What I would like to do is add a category “online” so that an appointment could be made for a patient that is “online” and in the patient portal they would see the details when they login. Any help would be much appreciated!