Action display Characters in the display which show what actions have been made on the mail. Mailing Commands to send mail. Add header lines to outbound mail. Will present you with menu to fill in values for each line. Only lines with value will be added to mail.
Some commands act on tagged mails when at least one mail is tagged.
Specification of only one line possible. Apply action to all tagged mails. Well, some commands work on tagged mails. Will hopefully ask what to do - like with Pine. Will ask for action.