There are two ways of getting to the edit form for a particular student.
The first is to navigate to the dealer you want to add a student to, then click its 'Students' link (if you have permission to access if). The listing of students will appear, and in the options column of each result will be an icon that looks somewhat like a notepad. Click this icon, and an 'Edit Student' form will pop up for the student/
The second way to get to the 'Edit Student' form is to simply search for the student you want to edit. If you have permission to edit the student, an 'Edit Student' icon will show up on the 'Options' column of his / her record row in the search result. Click this icon, and the 'Edit Student' form will pop up.
Once you fill in this form with the appropriate details, simpy submit the form, and it will be sent to the server for processing. If there are any errors in the submission, the server will notify you and prompt you to correct the errors it found. Once all is ok, and the student is successfully edited, the server will return a success page.