Right! I also used a Norton Commander clone written with Turbo Vision. You could mark several files (with Insert), then press F4 and voilà - you got multiple

Right! I also used a Norton Commander clone written with Turbo Vision. You could mark several files (with Insert), then press F4 and voilà - you got multiple windows open! AFAIR, you could even do a "global search and replace" (across these windows). Powerful stuff. Although coding in TV was much, much less pleasant than using it... Now I use Emacs, which is obviously superior to any other editor except Vim, which is incomparable [0] to Emacs. [0] https://en.wikipedia.org/wiki/Partially_ordered_set https://en.wikipedia.org/wiki/Partially_ordered_set