In a long sermon document, suppose I Ctrl-X to cut some text, scroll up to where I thought I wanted to paste it, and decide not to paste it there but keep it where it was. I Ctrl-Z to undo. At this point, I would expect it to scroll to where the change was made in the Sermon so I could see what just happened (that the text that had been deleted reappears). Instead, their is no notice that anything is happening as I am undoing previous actions. I have to scroll within the document to where I think things are being changed, and sometimes undo and redo until I am able to find what is being done and undone.
Summary: Whenever changes are made through Ctrl-Z/Ctrl-Y, those changes should come in focus in the Sermon Editor.