onbeforepaste not firing when dragging cells to copy-paste (selectionCopy: true)

[jaumereg]

I want to prevent data mixing when users drag cells to copy and paste, so I need to restrict horizontal "dragging and copy-pasting".

I found some examples suggesting that this can be achieved using onbeforepaste, but it's not being triggered. You can see this issue in the following example.

Does anyone know if this is the correct way to achieve it, or are there better alternatives?

Thanks.

[Ruan-Miguel]

It is not possible to make this restriction at the moment. So I will flag this issue as a feature request.