How to selectively delete a specific path from a Kup/bup backup archive?

I’m using Kup as my main backup tool, and despite some minor things that can be improved, I find it to be an excellent tool, and the integration with the KDE desktop is one of the main selling points for me.

I’m in need to clean my backup archive and remove some files/folders that ended here despite not being necessarily needed to be backed-up (my ignore list is evolving, so this may happen sometimes)

Is there a way to selectively remove some files/folders from a backup archive, complete with all their recorded snapshots?

As an example, as shown in “File Digger”, I want to remove the .eclipse folder from all snapshots.

I’m fine with either doing it with Kup (so with UI, but it does not seem to be possible) or with CLI by using directly bup.

Is there a way to do so?