It is possible for you to Edit in Borrower Details. First go into System Parameters (B1 C1), select C = Circulation, Enter down to “Student/Staff Module Available” change it from “Y” to “N”, press Enter, then press Escape 3 times.
Then go into Borrower Details, make the changes that you want. Thengo back into System Parameters and change the “N” back to a “Y”. (Otherwise when you do a Refresh nothing will actually be refreshed.)
Anyway if you Refresh Staff, then the staff member’s details should be changed to their new name and their loans will remain with them.