Hi guys, I've look at monster sprites for awhile now and just wondering if want to make a new monster sprite, how do we crack the frames that are used for its attacks, skills, and etc?
Here's what I've got so far...
Coeurl/Cougar as example:

So, as you can see from the above, scratch and poison nail used the same frames. So, if we were to create a new monster sprite, is there a way to crack this, like let's say example, make it use different frames for the poison nail skill, frames that we custom-made, extra frames that we extend at the bottom? Is this have something to do with hex editing?
EDIT: Sorry for posting at the wrong section.