In fact, in your config, it is supposed to go up to 6, but if you change it, it also affects when you hit the area in monsters, or in the castle siege, where the damage takes in area, you change there in radio that is 5 column after the name of the skill, where it is 6, do the test by putting 0 and changing it, some skills it is not possible to change the multiples because it is coded in the source, an example is the chain light of the summoner.
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