We took the view that a preference probably was not needed because the vast majority of users only open a very small number of Bibles, so it's easy enough for them to close Insights in each of those if it's not helpful. Once they do, they won't see Insights again.
Beta 2 initiates the Insights sidebar in Parallel Book sets e.g.
- open a bible in a panel e.g. LSB
- close Insights if it is shown
- open the same bible from Parallel Book sets in another bible e.g. in ESV
Overall, I've found that I'm closing Insights too frequently and the behaviour is buggy. A preference is needed.