IBM 3270 Manual page 168

5. If you decide you do not want to erase a
recording, press the WSCtrl key, and you are
back where you started.
6. When you are ready, press the Enter key.
The message will appear at the bottom of the
screen:
Erase complete: Press PF4 (Play), PF16 (Record), or Erlnp.
WSCTRL AUTO
JMEMO
The recording named JMEMO is erased. You
can make, play, or erase another recording.
7. When you are done, press the WSCtrl key to
return to where you started.
Chapter
11.
Recording/Playing/Erasing Keystrokes
11-'17