is it possible to disable this plugin with a zone, say i want to setup raidable bases in my server?

+1 that question. I would like to do the same.

just create a new ruleset as follows under the default and use zone manager to create zones then assign the zone the created ruleset

"RuleSets": [{
    "name": "default",
    "enabled": true,
    "defaultAllowDamage": false,
    "flags": "AuthorizedDamage, HeliDamageLocked, HumanNPCDamage, LockedBoxesImmortal, LockedDoorsImmortal",
    "rules": [
      "anything can hurt dispensers",
      "anything can hurt players",
      "players cannot hurt players",
      "anything can hurt traps",
      "traps cannot hurt players",
      "players can hurt barricades",
      "barricades cannot hurt players",
      "highwalls cannot hurt players",
      "anything can hurt heli",
      "anything can hurt npcs",
      "fire cannot hurt players",
      "anything can hurt resources"
    ]
  },
  {
    "name": "killall",
    "enabled": true,
    "defaultAllowDamage": true,
    "flags": "HumanNPCDamage",
    "rules": [
      "anything can hurt dispensers",
      "anything can hurt players",
      "players can hurt players",
      "anything can hurt traps",
      "traps can hurt players",
      "players can hurt barricades",
      "barricades can hurt players",
      "highwalls can hurt players",
      "anything can hurt heli",
      "anything can hurt npcs",
      "fire can hurt players",
      "anything can hurt resources"
    ]
  }
],