Stock by Attribute v4.0 addon for v1.3.5-1.3.9

[jodean]

I am trying to upgate my v1.5.7 version with the current Stock_By_Attributes-master from GitHIb

Copied Stock_By_Attributes_combined-master/1_5_6/admin/orders.php to my v1.5.7 version and the order.php runs. But it is missing v1.5.7 features such as the products ordered link on the order.php page.
Size 71,075
Runs without an error


Copied the orders.php from zen-cart v-1.5.7-06232020/admin/orders.php
Size 87,115
Original v1.5.7 Download
Runs without an error and displays the order product the products ordered link displayed

Here is what i tried:


Merged the two files above orders.php
Size now 89,283
orders.php just displays a white background page


No error log created

The same problem exists with the attributes_controller.php