@kiwidude Thanks again for this great plugin!
Please consider allowing custom columns of type "Text column for keeping series-like information" in "Add/Remove value to column", for "Shelf Add" and "Sync". This would allow the GoodReads plugin to work with your Reading List plugin to automatically create a sort order.
For example, I'd set the column to "A" when added to the "to-read" shelf and remove that value when the book is moved to the "read" shelf. I would end up with A...A[x] as books are added (to be fine-tuned by your Manage Series plugin if necessary
). I then use a plugboard such that the titles in the Kindle look like e.g. "[A01] Some book", so the books are sorted on the reader itself...