A lot of customers will do big orders with wholesalers,
I see the need for being able to go line by line for each SKU to decide what happens.
But there should be allowance for people who are just wanting to return a full order in a few simple stages, similar to how POS is run.
You can have the order, click return order, choose are you returning to stock or writing off and then close.
Majority of returns i've seen when doing support is someone needing to process a refund in full, so them having to go through each line every time is cumbersome, i understand the scenarios where people need more control, but there needs to be the quick action of just refunding the customer in a few clicks.
