

How does P mode works?
Hello guys,
Complete photography noob here.
I have an XM-5.
I’m on P mode and as you can see from the first picture I have set the front wheel to control P-shift (whatever that is).
However when I try to take a picture and I turn the wheel nothing happens. If I press the wheel and then turn I can control the ISO as expected but if I press it again and turn nothing changes.
I forgot to mention that I have the left control wheel set to C so that I can use custom recipes and the right wheel set to C1. If instead I manually activate the P mode by setting the right wheel on P then I can indeed control the shutter speed together with the aperture.