I. CAMERA FEATURES AND OPERATION 22and let you experiment knowledgeably with other combinations that might be bettersuited to your specific needs.Personal Function 00Once you get a combination of Custom Functions that works best for you, it can thenbe saved (along with any other C.Fns you use) as a Custom Function Group byregistering it with Personal Function 00. P.Fn 00 has the ability to register up to threedifferent groups of Custom Functions, so you can have one group for sports, onegroup for events, and another for everyday shooting. This allows you to quickly switchfrom combination to combination based on what you’re shooting without having toremember what C.Fn numbers need to be set. P.Fn 00 can be set in-camera, withouthaving to be tethered to the computer like the other P.Fns.To use P.Fn 00, locate the Custom Functions/Personal Functions menu on the LCDmonitor. (It’s the last tab on the right.) Scroll down to Personal Functions and let go ofthe Select button. If necessary, press the Select button again and rotate the QCD untilyou reach P.Fn 00. You will then have the option of registering the currently selectedgroup of custom functions or applying a group of C.Fns that have already been registered.