1. Yes, we have direct contact with Moodle partners so we can help them with this kind of things if they don't know how to do that.
2.The order change has been applied in v3.5.1. It was released in Android last friday, and it's pending for review in iOS (should be released soon).
3. One of the things we want to do is to display the list of sections in wide devices (tablet & desktop app), but we still need to find a good solution for phones since they don't have much screen space.