Mirror Sync: How copied events look per Calendar

It would be great to be able to define the "How copied events look" Section in a Mirror Sync per Calendar rather than apply it to all calendars.

That would allow using, for example, a different prefix when syncing from "Calendar 1 -> Calendar 2" vs. "Calendar 2 -> Calendar 1". Also, one might want to apply different privacy settings, Event Colors etc. for each sync direction.