Muhahahaha! Come over to the Dark Side, Pat...this GUI business is just a passing fad. If you can't do it in CP/M it isn't worth doing.
I remember toying with the CP/M terminals in high school, in 1984. I had only recently seen WarGames and I decided to impress a fair lass on the terminal next to me by accessing the directory where school records were kept.
We agreed that changing them would be very bad, but she was in awe of my prowess.
She married someone else, alas, but I finally found me a geek of my own. ;O)