Anki Small Questions Thread - (NO Technical / Troubleshooting Posts)

I'm using the Japanese Support add-on, which works great for generating furigana in the "Reading" field, when I enter kanji into the "Expression" field.

I want to edit the "Japanese (reading)" note type so it also has an optional space for adding example sentences. This would be a single field that I'd keep on the back of the card. I want to paste a sentence in there and have it generate the furigana automatically. But I'm finding it really difficult to work out how to do it.

Any help would be appreciated, thank you!