How to force local folders for drafts?

I have an imap based email provider who appears to have an issue with multiple drafts being created in the imap drafts folder which don’t get deleted when you send an email. The vendor is aware of the issue and it will probably get fixed when they move to a new back-end at some undisclosed point in the future. Their suggestion is to force your client to use a local drafts folder rather than the imap drafts folder.

I can’t figure out how to force eM client to use the local folder. Is this possible?

Hello again, it is unfortunately not possible to adjust the default folders to use Local Folders for drafts or any other special folder.

Tant pis.