>>Is there some simple property which would make this work? Or is there some code to write? I looked at the article at https://hackfox.github.io/section4/s4g356.html, but it's about dragging whole controls and OleDrag, not drag-n-drop editing.
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>Any chance you could use Ctrl-X/Ctrl-V instead?

Some. That is, I can use it, and I guess the user can use it, but it's kind of clumsy. After couple of decades of having drag editing, it becomes intuitive, and now it's a no go, all of a sudden.

Also, for some reason, the ctrl-C stops working under wine after a while.