I'm using the theme  https://themeforest.net/item/ocolus-classic-creative-shopify-theme/46630625?s_rank=2 but I don't understand what and where to write it correctly?

Hi. I'll buy you a coffee, can you write or explain where in which file to do the settings?

I'm sorry but this is complete nonsense, I have in my store 20 thousand products, and every day +- 1000 to be in stock or not.I know that on all platforms there is such a solution that the goods that are in the status of out of stock fall to the end ...

Hello!I need out of stock items to automatically move to the end of the list when displaying collections, regardless of the sorting and filters selected.What are some ways to implement this in Shopify? Does your system support this sorting at the set...