#define moreSkillGetForEnt(ent) ((MORESKILL*)ent.entMoreSkill)


void attack()
{
	MORESKILL* more = moreSkillGetForEnt(ent);
	... use more.custom_value[x] here
}

void movement(ENTITY* target_ent, var num......)
{
	MORESKILL* more = moreSkillGetForEnt(ent);
	.....
}

action test_me()
{
	MORESKILL* more = my.entMoreSkill = moreSkillCreate(); // create once at start of entity function
	more.custom_value[x] = 137.1;
	......
    while(my)
    {
        .....
        movement(my, more.custom_value[x].....);
        wait(1);
    }
}