Attach font on using Batch Convert

[guilty57]

First of all thank you for this great project.
I've been using SubtitleEdit for a very long time especially for .ass converting to use in Plex and Emby.
I wonder if you can add an option for us to attach fonts while converting subtitles to AdvancedSubstation Alpha format?
I use .ass subtitles externally as Plex and Emby supports, so after converting to .ass, I have to attach fonts one by one and save the files.

Thank you.

Regards, İsmail.