[NamTaf]

I could be wrong, but I'm interpreting it as a sort of analogous system to Word's autosummary feature. That is, You put in a complete text, and then have periodically briefer summaries of it (perhaps in sections, such as paragraphs?). You start with the summarised version, but then as the reader stretches out the text, it dynamically provides more detail in the areas that are stretched out.

e: For those like me who just went looking, apparently autosummary was removed in Word 2010, which given I had 2007 til about 2 years ago and thus didn't realise it was missing :)

Here's a description of it: https://www.officetooltips.com/word_2007/tips/getting_to_the...