Map Hack/ Main & Sub id

Hello!
Ihave always wanted to know how to find main and sub id and how to create fast map hack for Last Chaos(Fantasy). Unfortunately I have never found any tutorials which could help to understand that issue.
Iwould be pleased, if there found somebody who would like to sacrifice some time and prepare tutorial .
Thanks in advance.
Jason

there is a patcher somewhere on the forums. use the search function..