Sorry, I was out all day yesterday, so coming back in late to all the
questions. It looks like most have been answered.
Re the OCR, if you are using Windows 10 and NVDA 2017.3 or later, you
don't need an addon for OCR. If you are using an either version of
either NVDA or Windows, then you will need the addon. Basically, the OCR
works on images, whether jpg graphic files or PDF documents etc. It
won't do the scanning of hardcopy documents itself - to do that you will need
scanning software. Any hardware scanner should come with software, and
possibly also an OCR program, though how accessible and how good any of them
are varies. So the Windows 10 OCR, or the addon are really useful, but
likely not a complete replacement for an OCR package like Omnipage or Abbyy
Finereader, particularly for converting hardcopy documents into electronic
The other thing to consider is why you want to move the mouse.
Depending on where you are and what you are trying to do, NVDA has a feature
called "object navigation" which is very powerful although does take a little
bit to get your head around. Essentially object navigation lets you move
through the objects in the current program (and out of the current
program). Microsoft Word for instance has objects for the ribbon, the
scroll bars, ruler and main document. When you go into an object (say
the ribbon), you can move through the ribbon sections, then go down into a
particular section to navigate through the ribbon items in that section.
Some people like it for navigating the ribbon, but another thing you can do
with it, is get to features which you can't ordinarily get to with the
keyboard and interact with it - it can be used to read, and copy read only
text on a dialog box for instance.
Bonus tip: You can copy the text from a dialog box which has focus, by
simply pressing CONTROL+C. For instance, open Notepad, type something,
press ALT+F4. A dialog will appear asking "Do you want to save changes
to untitled" with buttons for "save", "don't save" and "cancel". To copy
all that, simply press CONTROL+C. It copies the following to the
Do you want to save changes to Untitled?
[Save] [Don't Save] [Cancel]