It is more like a one-line visual mode, you can actually use the same commands as there. Depending on terminal capabilities (that's why there are apparently thr

It is more like a one-line visual mode, you can actually use the same commands as there. Depending on terminal capabilities (that's why there are apparently three submodes), you can move the cursor left and right, and insert and delete text. IIRC, I once somehow got it in a very limited "dumb terminal" mode, and it printed \ for every deleted character.