I've found the item I thought I remembered. It says in the guidance that can be downloaded from this page -

"There are various other approaches to creating responsive tables, all with varying complexity out there. Chris Coyier compiled an overview of responsive data tables. Most of them rely on Javascript and do require coding. Clearly, they could also be created with an app similar to RSD. Let’s call it Responsive Table Builder for good measure — if you’re interested in something like that drop us a note on Twitter and we will consider adding this to our responsive app portfolio. For now, when using tables with a limited number of columns, the flexbox solution below works wonders."

Frank

PS. I haven't been able to replicate the problem I mentioned in the first sentence of item (a) in my first post in this thread - it must have been a mouse-use error on my part. FC