You are right, we currently don’t have the boolean field since it was a bit buggy on the previous version. I want to revisit that in the future though. I was thinking having a check symbol like this ✓ and an uncheck like this ✘ . This is in order to recognise the difference between an empty field and a field that have the “no” value.
Excellent Johnny, for now, I made a small adjustment to the model and the states to include a method, “cast”, which converts the boolean to integer and can be used with “Yes”, “No”.