I developed an extension that adds a new button with the label “Copy”. After clicking the button, the subject of the ticket is copied to your clipboard correctly formatted so taht it can be used in a mail reply from your favorite mail client.
Below is a short demonstration of the functionality :
Tested with RT 5.0.2
Extension Repos :
“RT::Extension::CopySubjectButton - Button that copies the subject in proper format for mail client reply - metacpan.org”