Hi Guys~ The shot type Power is not available when setting up or editing a player because it is only supposed to be used in special circumstances like hitting out of the weeds. Mike is right that if your distances seem off, adding or subtracting from the Distance Adjustment is the way to go.
Information on customizing club sets may be found below.
http://helpdesk.dancindogg.com/entries/20371168-customizing-clubsets