Reminds me of the "boss mode" / "boss key" in old games, like MS-DOS days, which would switch the screen to some spreadsheet mockup or suchlike, updated for the current century.

https://hackertyper.com/ and others. Full screen code stream

I think Sierra games like Leisure Suit Larry had that (F11) if I recall correctly. Priceless.

This was tickling something in my brain and this was it! Thank you.