"I don't think I have any changes in hierarchy right now...
"I don't think I have any changes in hierarchy right now because each new job is entered as a brand new customer *smh*"
You Can Change this at any time.
Set up the Customer Name that you want.
Make sure the Customer Center list is in Hierarchical View.
See little Handles to the left of each name.
Click and Drag that handle for one of the Job Names. Drag it Under Customer. Then Indent it = demoted it to be a Job under Customer = Sublevel.