EO 4.1.6 orders.php patches for ZC 1.5.5a

I am upgrading to ZC 1.5.5a from 1.3.9h with all fresh configuration and only migrating the database.

The read me file for EO 4.1.6 under Modified Core files, item 3, states:
There are five (5) change sections that apply to "Edit Orders" and other sections that introduce the Super Orders navigation to the orders' handling. If you are installing/upgrading on Zen Cart 1.5.5 or later, these navigation-related changes are already incorporated, but you'll need to merge the five change-sections into your version of this file.
"

In the 1_modified_core_files folder the orders.php file provided has only 4 change sections clearly marked. These are edit order patches 2 of 5 through to 5 of 5.

Are there really only 4 patches or are there 5?

Bailey