We add items records to all of our digital records. It would be such a timesaver to be able to add items when using the Bibliotheca eBook plugin. If there was a way to select a MARC modification template when adding them that would be great.
Do you mean this plugin? https://github.com/bywatersolutions/koha-plugin-bibliotheca
Yes that's the one.
I believe this should be filed on the issue tracker for the plugin instead.