L_C - for what it's worth, I was having the exact same issue you described; could not for the life of me figure out how to get, e.g., an "embed" block in 7.1. I think that if I hadn't found your post I would have given up and gone with a 7.0 template, and would have been quite frustrated :)
Thanks paul2009 for posting that video; I'd spent at least an hour trying to figure out how to get that menu up and had never realized you could click on those circle thingies. Much appreciated.