Lol no offence dude but you really seem to be bad at games, you always make threads on latest big PSP games and it's always such simple stuff that you can find in the manual lol
Honestly read the manual and it explains everything, the game even explains the difference before you can do anything and also tells you how to change the different settings. Internet has made people lazy
On a side note I am very disappointed in Tifa she sucks in this game