Am i missing something?

[Subtlety]

I'm wondering, am i missing something? Or am i just a plain idiot? Because iv searched the forums to see if there's any simple mods or anything or pre-made patches etc. I'm just currently wondering, because i was viewing some threads and it stated you need to use HEX and stuff to edit skills, or give skills to certain classes. When it comes to that stuff I'm completely blonde. I'm just aiming to give Ramza a cool class with certain job skills to make him, "unique" can someone please direct me in the correct direction? Thanks in advance.

[Subtlety]

Nevermind, i just figured out how to edit classes. I gave myself all the classes =)

Can you answer this instead? How do i have it so the enemy doesn't use the skill i have set against me? And are there any rules i have to remember for adding skills to a class? Or perhaps renaming a class?