How can I edit the Requester template?

How can I edit the Requester template?

Hello,

I noticed that when I am editing the Technician template, I am able to add any available fields and I also have the ability to make a new field. However, when I am under the requester template, I am unable to add fields. I am only able to add sections. 

This is under the service catalog.

                  New to ADSelfService Plus?