Copy/paste any "Value" of Character pointer (8-bytes) into Character 1/2/3/4/5 slot.
Avatar character is handled separately with active party members. So if you have team like Natsu/Lucy/Erza, you can use Gray as an avatar. Just copy/paste Gray's pointer into avatar slot.
Unlock all characters (including guest characters):
Copy/paste Last Character Pointer address into EndPoint value. Example, the address of last character pointer is
P->1E9A4BE4088 or 000001E9ABE4088 (8-bytes) then replace value in EndPoint with 000001E9ABE4088.
Activate "Character Status" script then highlight any character that you have added via table then change their Playable Status to 1. Save your game.
Guest characters like Ultear, Flare, and Minerva have no bond rank because they are not actually playable characters.
If you unlock Mirajane with the table, somehow her skill and bond are not accessible. So just unlock her in normal way.
Lacrima, Status, and Element pointers are just for info. There is no use changing those values.