Change cursor for drag and drop

[mutzl]

How can I change the cursor while dragging a node?

The default looks like in the screenshot (with a small rectangle below), but I need to change that to a cursor with a plus sign for a copy operation.

[mutzl]

Finally solved it.

    allowDrop: (node, { parent, index }, $event?: any) => {
      if ($event.ctrlKey) {
        $event.dataTransfer.dropEffect = 'copy';
      } else if ($event.shiftKey) {
        $event.dataTransfer.dropEffect = 'link';
      } else {
        $event.dataTransfer.dropEffect = 'move';
      }

      const canMoveCopyLink = true;  // optional logic
      return canMoveCopyLink;
    },