I assigned the timer function key to ISO. Now when i press it, takes me to ISO setting quickly and i can rotate the wheel to change the iso very quickly. Boom. Very impressed. However, why spinning the wheel does not work for other parameters such as changing shooting mode, exposurecsetting, metering etc. for all these it is annoying two step process. Nikon missed a great opportuninty in terms of ease of use in faster situation. Is there a work around?