In insert mode, the keyboard behaves like a typewriter. Keystrokes display as screen text after typing any of these commands.
| i | Insert text at the cursor. |
| A | Append text at the end of the line. |
| a | Append text after the cursor. |
| O | Open a new line of text above the cursor. |
| o | Open a new line of text below the cursor. |
| Esc | Exit insert mode and invokes command mode. |