Actions operate on a sequence list after the list is build.
<p>In below examples last/reverse/shuffle are actions.

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      <th bgcolor="#dddddd">HTML</th>
      <th bgcolor="#dddddd">RESULT</th>
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<tr><td style="vertical-align:top"><!-- START DEMO SOURCE --><pre><code style="color: #000000"><b>{<font color="blue">sequence </font><font color="red">range=<font color="black">'</font>20..30<font color="black">'</font><font color="black">,</font> push=<font color="black">'</font>mySeq<font color="black">'</font></font>}</b></code></pre><!-- END DEMO SOURCE --></td><td style="vertical-align:top"><code><span style="color: #000000"><!-- START DEMO RESULT --><!-- END DEMO RESULT --></span></code></td></tr>
<tr><td style="vertical-align:top"><!-- START DEMO SOURCE --><pre><code style="color: #000000"><b>{<font color="blue">mySeq </font><font color="red">last=3</font>}</b> <b>{<font color="green"><font color="red">$</font>sequence</font>}</b> <b>{/<font color="blue">mySeq</font><font color="red"></font>}</b></code></pre><!-- END DEMO SOURCE --></td><td style="vertical-align:top"><code><span style="color: #000000"><!-- START DEMO RESULT -->28  29  30<!-- END DEMO RESULT --></span></code></td></tr>
<tr><td style="vertical-align:top"><!-- START DEMO SOURCE --><pre><code style="color: #000000"><b>{<font color="blue">reverse </font><font color="red">mySeq</font>}</b> <b>{<font color="green"><font color="red">$</font>sequence</font>}</b> <b>{/<font color="blue">reverse</font><font color="red"></font>}</b></code></pre><!-- END DEMO SOURCE --></td><td style="vertical-align:top"><code><span style="color: #000000"><!-- START DEMO RESULT -->30  29  28  27  26  25  24  23  22  21  20<!-- END DEMO RESULT --></span></code></td></tr>
<tr><td style="vertical-align:top"><!-- START DEMO SOURCE --><pre><code style="color: #000000"><b>{<font color="blue">sequence </font><font color="red">mySeq<font color="black">,</font> shuffle</font>}</b> <b>{<font color="green"><font color="red">$</font>sequence</font>}</b> <b>{/<font color="blue">sequence</font><font color="red"></font>}</b></code></pre><!-- END DEMO SOURCE --></td><td style="vertical-align:top"><code><span style="color: #000000"><!-- START DEMO RESULT -->23  20  24  30  27  25  21  29  26  28  22<!-- END DEMO RESULT --></span></code></td></tr>

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