FYI, added the ability to copy product with associated Stock By Attributes attributes being transferred/copied to the new product, or to other product or categories (attributes controller).
Also found two minor bugs:
1) related to interrelationship with Products Attributes Grid (PAG).
2) the other a potential javascript error that could affect other parts of the page as well as if a product has read only attributes and the read-only attributes are not at the end of the attribute list, the product is added to the cart, the cart visited, then selected from the cart to return to the product info page, (deep breath) now all of the attributes that were selected to add the product to the cart will be auto selected again like it is in a default install...
Addressed PHP 7.2 compatibility based on upcoming deprecation of functions.
A few files had alignment modifications.
Other minor modifications to support other improvements.

master branch of https://github.com/mc12345678/Stock_...utes_Combined/ has these items applied