+----------------------------------------------------+
| L ... List it              S ... Done, save it     |
| C ... Continue (add)       E ... Edit a line       |
| T ... Change "To"          F ... Change "From"     |
| J ... Change "Subject"     A ... Abort it          |
| I ... Insert a blank line  D ... Delete a line     |
+----------------------------------------------------+
When editing (E) you can get back the old line by
typing Control-R.