{
  "elements": [
    {
      "type": "Label",
      "caption": "Einstellungen für Abrechnung"
    },
    {
      "type": "ExpansionPanel",
      "caption": "Benutzer (Empfänger)",
      "items": [
        {
          "type": "List",
          "name": "Users",
          "caption": "Benutzer",
          "add": true,
          "columns": [
            { "caption": "ID", "name": "id", "width": "10%" },
            { "caption": "Name", "name": "name", "width": "35%" },
            { "caption": "E-Mail", "name": "email", "width": "35%" },
            { "caption": "Adresse", "name": "address", "width": "20%" }
          ],
          "rowCount": 5,
          "rowEdit": true,
          "delete": true
        }
      ]
    },
    {
      "type": "ExpansionPanel",
      "caption": "Zähler",
      "items": [
        {
          "type": "List",
          "name": "Meters",
          "caption": "Zähler",
          "add": true,
          "columns": [
            { "caption": "ID", "name": "id", "width": "10%" },
            { "caption": "Name", "name": "name", "width": "25%" },
            { "caption": "IPS-VariableID", "name": "variableid", "width": "20%" },
            { "caption": "Benutzer-ID", "name": "user_id", "width": "20%" },
            { "caption": "Einheit", "name": "unit", "width": "15%" }
          ],
          "rowCount": 5,
          "rowEdit": true,
          "delete": true
        }
      ]
    },
    {
      "type": "ExpansionPanel",
      "caption": "Abrechnung (Schnellstart)",
      "items": [
        {
          "type": "DateTimePicker",
          "name": "from",
          "caption": "Von",
          "format": "yyyy-MM-dd HH:mm"
        },
        {
          "type": "DateTimePicker",
          "name": "to",
          "caption": "Bis",
          "format": "yyyy-MM-dd HH:mm"
        },
        {
          "type": "NumberSpinner",
          "name": "work_price",
          "caption": "Arbeitspreis (pro Einheit)",
          "digits": 4,
          "minimum": 0
        },
        {
          "type": "NumberSpinner",
          "name": "fixed_fee",
          "caption": "Fixbetrag pro Benutzer (optional)",
          "digits": 2,
          "minimum": 0
        },
        {
          "type": "Button",
          "caption": "Abrechnung erzeugen (PDF)",
          "onClick": "GenerateInvoices"
        },
        {
          "type": "Label",
          "name": "result",
          "caption": ""
        }
      ]
    }
  ]
}