PV‑WAVE saves the last 20 command lines you enter. These command lines can be recalled, edited, and re-entered. For example, the up cursor key on the keypad recalls the previous command you entered. Pressing it again recalls the line before that, and so on. When a command is recalled, it is displayed after the PV‑WAVE prompt and may be edited or entered as is.

The command recall feature is enabled by setting the system variable !Edit_Input to 1, and is disabled by setting it to 0.