Dizziness. The text is unclear. . .
There is a small button drop-down dialog box where you can write. You click on the stationery management, and then reply to the email stationery. You enter your usual reply email stationery, such as HTML email, and then remove the signature on the right.
Then save, and right-click to set it as the default stationery. It will be ok when it is finalized!
Words are hard to say!
good luck