[KevinH]

But that takes extra mouse clicks on menus and buttons.

FWIW, I have no trouble dragging and dropping into that label as it is much bigger than a single menu entry and much bigger than any single button. Plus it gives visual feedback before any drop is done making it hard to use it by accident. And the drop area only become active when actually dragging files. It is disabled when dragging anything else.

So I am really not that sure that using a menu and buttons to first create a drop zone makes sense, at least to me.

Let's hear from who build their own to see what they think before making any further decisions.