@Michkovy said:

Having recently discovered that I can drag and drop lines between split view documents, I was wondering if the behavior can be changed from copying/pasting the text to cutting/pasting it.

I’ve looked through the options but found nothing. Is there something hidden away setting I might have missed?

Just trying it, it looks like holding down the Alt key works. You can press it before or during the drag, so long as it’s down when you release the mouse. If you press it after you’ve over the other view, but before you release the mouse, you’ll see the plus sign on the drag icon disappear.

Interesting: I was thinking I would just have to say, “add the Ctrl key after you start dragging”, but in experimenting, I found that I had the two results backward in my mind (since I don’t use dragged text like that, myself; it’s too inexact/error-prone for me). But what I found: inside the same view, just the normal drag-and-drop will to the cut/paste, and you have to add Ctrl after you are in mid-drag to get it to be a copy; but whether I add the ctrl or not in the middle of the drag, if I drag to the cloned copy of the document in the other view instead, it’s still just a copy. So i can replicate your behavior.

So, sorry, I don’t know of a way to do that. But I am now curious if someone else knows of a way, or if one of the codebase experts knows why it might not be possible (or whether it’s a feasible feature request or not).

(I’d apologize for providing a ‘non-answer’ as my answer, when you haven’t gotten a ‘real answer’ first… but I wanted to caution future respondants to not jump to the same conclusion I did at first without actually giving it a try for themselves.)