Shouldn't we have a "complete/append" function in the context menu?

I suppose there’s a reason we don’t have that functionality but I’m still curious what’s preventing it. Is this a windows issue? All these folders and files could be managed so much better… I’m using Total Commander instead of explorer and I’m so used to the added functionality I’m surprised other people even get by.

I feel cheated when a download fails at 93% and I have to start over even though the incomplete file is still on my disk.