Is there a way to keep the shutter locked to a number but with manual ISO.  For instance I want manual ISO with the wheel but my shutter at 50.  But when I go into manual mode and use the wheel it keeps wanting to adjust the shutter value instead of the ISO control you get when in AUTO mode.  Am I missing something?

Mine is the same way.  With the phantoms the wheel can be pushed in and it switches but it doesn't seem to do it on the mavic.