The OA specified the software used and the way that the tools were chained together, and he mentioned the somewhat kludgy workround for getting the chapter headings vertically centred on the page.

I also found his other page linked from the OA about the actual writing process itself of interest. Specifically the way he 'reverse engineered' the plots of various popular novels by deciding on some common headings/categories and summarising each of the novels under those headings in a spreadsheet.

What 'useful information' do you find to be missing?