I have a question about a setting for ISO on the Z6. On the default setting for ISO when you depress the ISO button to adjust ISO level on the back wheel you must keep the ISO button depressed while you make the adjustment. Awkward. I understand there is a menu setting that will enable you adjust the back wheel without the necessity of keeping the ISO button depressed while doing so. With that setting you can toggle the ISO function on and off. Anyone know where it is in the