While in the Person details screen, you may want to make changes to the data that is associated with that record. To do so, click on the three dots button in the top right corner, then click on Edit.
You will be brought to a form that contains the Person Details, Address details, and Profile details. You can make any changes that are nesissary to each of the sections. Do note that any of the fields indicated with an * are required fields, and must be filled in before you can Save and Close.