Plenty of references to plotting charts and how to use them in the North Atlantic Ops and Airspace Manual. It's a dry old read, to say the least.
Paper charts will eventually disappear, of that I'm certain. In the meantime, I guess we keep doing the plots per company procedures. I suppose total time expended on the chart for an Atlantic crossing is in the region of five minutes and I don't know what I'd do with that extra time.