Re: Virtual Viewer
See the official download page: https://addons.nvda-project.org/addons/virtualRevision.en.html
The "Usage" section is very brief, but it's a starting point, and probably all that anyone familiar with the functionality from another screen reader needs.
I believe there is a lot of discussion going on about documentation for Add-Ons, and I am hoping that, at the very least, some sort of "Quick Start Guide" will become required. There are a number of them that I have no idea how one does anything beyond installing them. I don't expect a multi-chapter user guide, but something would be nice.
Brian - Windows 10 Pro, 64-Bit, Version 1903, Build 18362
The color of truth is grey.
~ André Gide