Sort products by item positions in category. How change product positions from page 2 to 1?

[Ramage]

Hello i have sort products by item in category. Everything cool, but how to move a drag and drop product from 3 sides to 1? I have 1300 products and view max 300 products.

[Prestachamps]

Hi,
As a quick workaround trick you can try to modify the value of the select in the dropdown to 1000 or 1300 before you select it, from inspect element: https://prnt.sc/GwO8fFFfHlwX
It seems it is working, but may take time loading all the 1300 products on one page. 
Otherwise, you need to find in the prestashop core functionality this part of code and modify it. 
I hope that I could help.
Have a nice day, Leo.