Sorry for the a lot of ticket but im need help.
Is possible add to the drops custom damage?

help?

Yes, try adding damage: (or damage.victim, damage.attacker, damage.world, damage.server), eg:

  DIRT:
    - drop: [EGG, DIRT]
      damage: 5
      message: "Ouch! that hurt and it dropped an egg?!"

btw: Support queries are best posted to the OtherDrops Bukkit forum thread or the BukkitDev project page comments (or even on IRC sometimes) as you'll probably get a quicker answer there. GitHub issues are best for actual bugs or feature requests and I don't look at them as often.