I use MS OneNote which I am PRETTY SURE will not meet your needs since it saves as you go, and I doubt there is any good export from it (never looked). I do not know about the cursor.
But I mention it to ask if that style of program might work for you? There are a few in the space but you would have to check them to see if they meet your specific accessibility needs.
I have ALL of my notes about what projects I am working on in it now. For me it works great, that is all I can truly claim.
