How would one know what, when and where to insert ?

I would like to insert (not add) a new data of School, School ID, LRN and Last Name of a student. This happens when during data encoding, the user missed a student profile so the student personal data must be inserted. The data must be arranged in alphabetical order of the Last Names of students. I tried uploading the User Form but failed.



I hope I am making sense. Thank you.