PS 1.7 Sort order in Backend by reference

[ritchier]

Hi, I upgrade recently to Prestashop 1.7.4.2 from 1.6.6.6.  In older version I change de sort  of Product Details of order in PDF and Backend with this post :

https://www.prestashop.com/forums/topic/221921-pdf-invoice-sort-products-by-name/https://www.prestashop.com/forums/topic/221921-pdf-invoice-sort-products-by-name/ 

or this post:

https://www.prestashop.com/forums/topic/68926-solvededit-pdf-invoice-sort-orderreference/https://www.prestashop.com/forums/topic/68926-solvededit-pdf-invoice-sort-orderreference/

 

But in PS 1.7, PDF Invoice is sorted,is OK,  but in Backend at Orders is sorted by default. 

Anyone knows How to make it to get sorted by Reference in Backend too?

Thanks in advance!