Reply to email with stationery. Subject

[Guido Tagliazucchi]

Coming from Eudora I find a problem with Thunderbird stationery.

when I reply an email with a stationery in the subject of the reply comes: Re:subject of replied email
I need to have in the subject of the reply the default subject of the stationery.
Is it possible?
How? anyone can help?
thanks in advance
Guido