In the text mode install, whilst selecting packages and working my way down the list, I discovered an "everything" option. At the end. This is a bit of a pointless place to put it. If someone has selected each group laboriously, then finding this at the bottom will not best please them. "Everything" should be at the top, or mentioned on that screen as being found down at the bottom.
selecting each group individually is not the same as selecting everything (for example compare size requirements...) I will put your request to handle the Everything group better on our list of feature requests ... thanks for your input!