Thanks again for the reply.
As you indicate, using the example “top level” page (fuelcellsworks.com/news) I can do the First and Second Element, and if this was all I was after I would not have a problem.
However, I should give you some further information.
The top level page is only relevant as a landing page. This is static. But the articles that it points to change, so the long title of the second link (the example) will be top of that page one day and the next it will be something else, hence the idea of starting from the top level page. The top level page cannot be used to harvest data as it only contains short summaries of data.
When I move to the example pages (and there are hundreds of them), the full data set is available. However, this only has a unique element (like date, or title per page). There is no second element to click or select. The only thing (relevant) aside from the news article is the Next and Previous links to the next and previous news items, each of which opens a similar page.
Hence, while I can specify the First and Second Element (using Data Scraping) on the top level page, I cannot do so on the pages this points to, as each page only has a First Element.
Does this explain things better, and again, very much appreciating your responses so far, can you point me to a method to deal with this contingency?