I think this is a massive improvement in ease of use, especially in score editing.

You now have a 'mouseover' action which lets you see when you are on an editable item.

Drag and drop has been greatly extended, and you can now also move or copy notes within the staff by dragging.

Please let me know what you think (and if you find any bugs!)

Download from my web site .
(Sorry it has increased in size)