With the {data} tag it is possible to define data for later use.

HTML RESULT 
{data 'myData'}
  [
    { "name": "joe",   "phone": "555-3425" },
    { "name": "jim",   "phone": "555-2364" },
    { "name": "jack",  "phone": "555-3422" },
    { "name": "jerry", "phone": "555-4973" }
  ]
{/data}

<table border="1">
  {myData}
    <tr>
      <td>{$name}</td> 
      <td>{$phone}</td>
    </tr>  
  {/myData}
</table>
joe 555-3425
jim 555-2364
jack 555-3422
jerry 555-4973

Data can be in xml/json/yaml/csv format.

There is also an own PAD list format with opening ( and closing )

HTML RESULT 
{data 'myXML'}
  <data>
    <row name="bob"   phone="555-1111" />
    <row name="jim"   phone="555-2222" />
    <row name="joe"   phone="555-3333" />
    <row name="jerry" phone="555-4444" />
  </data>
{/data}

{data 'myJSON'}
  [ { "name": "bob",   "phone": "555-5555" },
    { "name": "jim",   "phone": "555-6666" },
    { "name": "joe",   "phone": "555-7777" },      
    { "name": "jerry", "phone": "555-8888" } ]
{/data}

{data 'myYAML'}
  ---
  - name: bob
    phone: 555-3425
  - name: jim
    phone: 555-4364
  - name: joe
    phone: 555-3422
  - name: jerry
    phone: 555-4973
{/data}

{data 'myCSV'}
  name,phone
  bob,555-3425
  jim,555-4364
  joe,555-3422
  jerry,555-4973
{/data}

{data 'myList'}
  ( 'myXML', 'myJSON', 'myYAML', 'myCSV' )
{/data}
{myList}
  <p>
    <table border=1>
      <tr>
        <th colspan="2">
          {$myList}
        </th>
      </tr>
      {pad data='{$myList}'}
        <tr>
          <td>{$name}</td> 
          <td>{$phone}</td>
        </tr>
      {/pad}
    </table>
  </p>
{/myList}

myXML
bob 555-1111
jim 555-2222
joe 555-3333
jerry 555-4444

myJSON
bob 555-5555
jim 555-6666
joe 555-7777
jerry 555-8888

myYAML
bob 555-3425
jim 555-4364
joe 555-3422
jerry 555-4973

myCSV
bob 555-3425
jim 555-4364
joe 555-3422
jerry 555-4973

If {data 'xxx'} is used, then the data will not be processed before it is stored in the data store,
all above examples use it in this way.

If {/data 'xxx'} is used, then the data will be processed before it is stored in the data store.
Below a crazy example how this can be used:
- first there is a JSON data definition
- then this JSON data is converted to CSV data
- then this CSV data is converted to XML data
- then this XML data is converted to YAML data
- then this YAML data is used to show a HTML table.

HTML RESULT 
{data 'myJson'}
  [ { "name": "bob",   "phone": "555-5555" },
    { "name": "jim",   "phone": "555-6666" },
    { "name": "joe",   "phone": "555-7777" },      
    { "name": "jerry", "phone": "555-8888" } ]
{/data}

{data}
  name,phone
  {myJson}
    {$name}, {$phone}
  {/myJson}
{/data 'myCsv'}

{data}
  <records>
    {myCsv}
      <record name="{$name}" phone="{$phone}"/>
    {/myCsv}
  </records>
{/data 'myXml'}

{data}
  ---
    {myXml} 
    - name: {$name}
      phone: {$phone}
    {/myXml}
{/data 'myYaml'}
<table border="1">
  {myYaml}
    <tr>
      <td>{$name}</td> 
      <td>{$phone}</td>
    </tr>
  {/myYaml}
</table>
bob 555-5555
jim 555-6666
joe 555-7777
jerry 555-8888