Copying an edited book reference as a basis for a book section

I have made numerous referencesbased on Edited Books. Now when I want to make a new reference for a book section within that boo, how do I do it? I can copy the edited book reference, but when I go into that it does not provide the fields for a book section such as Author, Article/section Title, Page numbers. This is such a common situation that there must be an easier way of doing this than entering the book infop all over again.

Actually I did not enter the oreginal book as edited book but as book, so first I have to go into the referenvce and change reference type: BOOK to EDITED BOOK. How do I do that?

OK I do contrt C contrl V to duplicate the book reference. However, when I open it up and change reference type to Book Section, the additional fields do not appear, so that I can, for example, add the chapter name. I must be doing something wrong.