Whilst editing or reading text I often find myself working with the cursor on the very last line of the Document pane and I often find myself scrolling the window up just to get the cursor off the bottom line.
It would be more comfortable to have the cursor automatically stay in the middle of the screen and the window scroll to keep it there.
The way I see this feature working is a tick box somewhere in the options for 'Typewriter scrolling'.
If the box is checked then the cursor position would be fixed at two thirds or three quarters of the way down the document pane whilst typing if there were enough text to support that. Obviously if there were just a couple of lines of text or if you were just starting to write then the cursor would be at the top of the page, but as soon as there is enough text the cursor stays in the same position, in that way your eyes become accustomed to