I had not been aware of that add-on, and it is available via the NVDA Add-Ons Directory.

The latest version, however, is 1.4.  Download Link: https://nvda-addons.org/files/get.php?file=applicationdictionary 

I'd love to know how they implemented this "under the hood".
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Brian - Windows 10, 64-Bit, Version 21H1, Build 19043  

The difference between a top-flight creative man and the hack is his ability to express powerful meanings indirectly.

         ~ Vance Packard