Plugin Free Announcer 1.1.2

{
  "Randomize messages": false,
  "Global interval": 600,
  "A. Messages": [
    {
      "Message": "This is normal message that sending by global timer, everyone will see it",
      "Permission": ""
    },
    {
      "Message": "This is normal message that sending by global timer, but only players with permission will see it",
      "Permission": "announcer.extra"
    },
    {
      "Message": "Hello world",
      "Permission": ""
    }
  ],
  "B. Extended messages": [
    {
      "Interval": 600,
      "Message": "This is extended message that send by own timer, everyone will see it",
      "Permission": ""
    },
    {
      "Interval": 900,
      "Message": "This is extended message that send by own timer, but only players with permission will see it",
      "Permission": "announcer.example"
    }
  ]
}

{
  "Randomize messages": false,
  "Global interval (seconds)": 300,
  "A. Messages": [
    {
      "Message": "This is normal message that sending by global timer, everyone will see it",
      "Permission": "",
      "Sender ID": 0
    },
    {
      "Message": "This is normal message that sending by global timer, but only players with permission will see it",
      "Permission": "announcer.extra",
      "Sender ID": 0
    },
    {
      "Message": "Hello world",
      "Permission": "",
      "Sender ID": 0
    }
  ],
  "B. Extended messages": [
    {
      "Interval (seconds)": 600,
      "Message": "This is extended message that send by own timer, everyone will see it",
      "Permission": "",
      "Sender ID": 0
    },
    {
      "Interval (seconds)": 900,
      "Message": "This is extended message that send by own timer, but only players with permission will see it",
      "Permission": "announcer.example",
      "Sender ID": 0
    }
  ]
}