When and how are costume settings invoked on the X-T1? I'll primarily shoot in Manuel mode, but also use apeture priority or shutter priority, setting ISO usually at 200. Doing so, I have no idea what is being used for dynamic range, film simulation, white balance, color setting, sharpness, highlight tones, shadow tones, etc. How do I know when a custom setting is being used and when my choice of dial settings are taking precedence over everything else? Confused... Dave