Editing / changing the subject when replying to or forwarding an email in Gmail is definitely possible and the video above will walk you through the necessary steps.
Gmail recently made some layout updates that have made changing the subject when interacting with received emails in Gmail a bit more difficult. Previously, the subject field was clearly visible when responding to or forwarding a Gmail email.
Now, users must click on a drop-down menu and select the “change subject” or “pop out” option in order to gain access to the subject field of the email they’re forwarding or replying to.
I believe Gmail has done this in an effort to simplify their interface and reduce clutter – now they just have cluttered menus. All jokes aside though! Once you learn and get comfortable with the new compose experience works in Gmail it becomes second nature pretty quick!
If you haven’t already, you may want to check out my 2013 video series on using Gmail:
All Gmail 2013 tutorial videos on one page: Gmail Video Tutorial Series 2013
See Also: Google Drive Video Tutorial Series 2013
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