The first work i had to use vi and screen on a terminal, it were in 90s . I was used to dos editors ( edit, turbo C ... ) and windows . It was a pain. copy and paste at first was a nightmare. Copy from one file to another ,with named register and # was an hell ( it was vi not vim so only 2 files a time ,the actual edited and the prior ones ). I hated that place, that work, those tool for a while . I got so used to vi…
Maybe it should be included in the list. It can still be downloaded from the openwatcom project, https://openwatcom.org/ftp/manuals/1.5/vi.pdf