HOW TO ADD SKILLS:
Use MHBINPACKER and open SKILL_GET_LIST.BIN.
This is how your BIN looks like. I just put numbers to identify the columns.
Column 1 are the ID of JOBS.
Column 2 are the Skill count or the number of skills that you can learn on each job.
Column 3 are the SKILL that you can learn.
You can add skills on the row of the following.
1111 > Human Fighter
1211 > Elf Fighter
2111 > Human Rogue
2211 > Elf Rogue
3111 > Human Mage
3211 > Elf Mage
It is easier to add skill on level 1 jobs.
NOW to add skills, just place the ID or number of the skill that you want at the end of each row. Then, don't forget edit column 2. Always remember to count the skills that you place on each. If you will not edit column 2, your game will crash :P