CANON MARK III FOCUS SETTINGS

Hi

I switch from a Mk II to a MK III. On my mark II i use to do my focus selection with the rear dial by rotating the wheel I could go on one of the 9 outer focus area . I could also use the WB button to reset the focus back in the center point. Also, I could change the speed of the camera with the front dial and when pressing the Focus area selector button on the back I could change the aperature setting too. Are those settings possible with the mark III ? If so can someone let me know i've been trouht the guide but I dont seem to find how to set the Aperture setting to the Focus selector Buton ( zoom +)

1- front dial changes speed of the camera
2- front dial with the focus button ( back top right) change the aperture settings
3- Back dial alows me to move the focus selector trought the 9 outer areas
4- WB button resets the focus selector to the center


Please help me...someone

if you want to reset your focus point back to the center, you can push in the "multidirectional" joystick or whatever they call it (the smaller joystick-type-thing that controls all focus points on a 20/30/40d)

certainly not an answer to all your questions, but hope it helps.

thx but I really need to know the other settings......