Reinstate warning on dragging cells

On dragging cells in Calc, I used to get a warning if the destination cells were not empty. I opted to turn this warning off, but I need to turn it on again, and I can’t find where to turn it back on.
(It’s not covered by the similar warning on Pasting to non-empty cells.)
Using Version

EDIT: My error. This only work for pasting, as @Karl2 wrote. I don’t remember this capability. Moving as comment.

Choose Tools - Options - LibreOffice Calc - General - Show overwrite warning when pasting data.

With LibreOffice (x86); OS: Windows 6.1.

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Thanks - but I tried that and it didn’t work, before posting the question. It seems that dragging cells is not the same as pasting. I still get the paste warning, but not the warning on dragging to non-empty cells.

There are a slighty related bug: fdo#119088.