Option to map Author, Series and other fields

[abs0]

Is your feature request related to a problem? Please describe.
Sometimes Audible will have different spellings for the same Author, of sometimes switch between an Author or a generic label such as "BBC Audiobooks" for books in the same series. I have a custom folder format of:
<first author>\<if series-><series>\<-if series><title><if series-> #<series#><-if series>
which means the poor data at Audible causes issues

Describe the solution you'd like
Some way to change the author (first author) and series data .

Options:
a) Make Authors & Series editable in libation interface (in practice it would make sense to make most fields editable)

or

b) Add a "Mapping table" for attributes with two sets of columns for all attributes (Series, Authors, etc). Any item which matches non-blank fields on the left would have any non-blank fields on the right automatically applied. I would personally really prefer this, but it is probably not as easy from a user perspective. It would allow mapping an Author field, or a combination of Author + Series, etc

Other considerations

• It would (ideally) work with existing downloaded data, so changing the author or series could result libation renaming existing files
• Libation would need to store both the original and modified value of each field, to allow users to reset values for option a), and to allow updated rules to be applied correctly for option b)

Describe alternatives you've considered
Currently I create a symlink tree of adjusted files for my Sonos library, which works... but is a pain

Additional context
Add any other context or screenshots about the feature request here.