PS 1.6 header and footer for emails

[Holohugo]

Hello,

Im looking for a way to enable footer.html and header.htm FOR EMAILS.

I noticed that in every lang folder for emails have its template for header and footer, but those are not active and every email template is just one file (payment.html for example). How do i enable those to actually work? So all my emails with same language will have same header and same footer? Im totally failing to find anything about this, but the templates are there, so i think it should be somehow possible.

 

I want my emails to be assembled like this (payment.html is a placeholder):

HEADER.html

payment.html

FOOTER.html

 

Thanks for advice