To edit the subject of a message prior to sending it, enter an 'ES' at the
'Select Message option: Transmit now//' prompt or enter an 'E' at the
'Enter message option' prompt and then enter 'ES' at the 'Select Edit
You can use the Edit Subject action code (i.e., 'ES') to change the
subject text of a message you intend on sending.
The subject of the message is shown whenever the message is displayed. It
can be from 3 to 65 characters in length. Any leading and trailing blanks
are deleted. Also, any sequence of three or more blanks is reduced to two