Yes… it will still operate exactly as normal using the touch points on the device… If anything using this device handler just makes it a lot easier to do so. Inputting the configuration settings must be an absolute pain the ass using the touch buttons.
Yes. Changes made will be reflected in both. I have made a reasonable effort to ensure that it is always synced up… However, occasionally there may be a small delay… but for most things it will be near instantaneous.