<div>Thanks for the explanation. &nbsp;I have inplemented the messages 
STPlayEdit&gt;&gt;ok and STPlayEdit&gt;&gt;cancel&nbsp; but I get a doesNotUnderstand 
when I run it.&nbsp; Here is the stack trace that I get:</div>
<div>&nbsp;</div>
<div>
<li>STEditPlay(Object)&gt;&gt;doesNotUnderstand: 'ok'
<blockquote>
<table>
<tbody>
<tr>
<td class="label">self</td>
<td>a STEditPlay</td></tr>
<tr>
<td colspan="2"><b>temps</b></td></tr>
<tr>
<td class="label">aMessage</td>
<td>ok</td></tr>
<tr>
<td colspan="2"><b>inst vars</b></td></tr>
<tr>
<td class="label">decoration</td>
<td>a WAStateHolder(a 
WAAnswerHandler)</td></tr></tbody></table></blockquote></li>
<li>MessageSend&gt;&gt;value
<blockquote>
<table>
<tbody>
<tr>
<td class="label">self</td>
<td>MessageSend('ok' -&gt; a STEditPlay)</td></tr>
<tr>
<td colspan="2"><b>temps</b></td></tr>
<tr>
<td colspan="2"><b>inst vars</b></td></tr>
<tr>
<td class="label">receiver</td>
<td>a STEditPlay</td></tr>
<tr>
<td class="label">selector</td>
<td>'ok'</td></tr>
<tr>
<td class="label">arguments</td>
<td>#()</td></tr></tbody></table></blockquote></li>
<li>WAActionCallback&gt;&gt;evaluateWithArgument:
<blockquote>
<table>
<tbody>
<tr>
<td class="label">self</td>
<td>a WAActionCallback</td></tr>
<tr>
<td colspan="2"><b>temps</b></td></tr>
<tr>
<td class="label">anObject</td>
<td>'Ok'</td></tr>
<tr>
<td colspan="2"><b>inst vars</b></td></tr>
<tr>
<td class="label">context</td>
<td>a WARenderingContext</td></tr>
<tr>
<td class="label">owner</td>
<td>a WAFormDecoration</td></tr>
<tr>
<td class="label">key</td>
<td>'4'</td></tr>
<tr>
<td class="label">block</td>
<td>MessageSend('ok' -&gt; a 
STEditPlay)</td></tr></tbody></table></blockquote></li></div>
<div>I have been digging into the code to try to figure out what could be going 
wrong, after all, it seems pretty simple,&nbsp; but so far I cannot explain why the 
call to my STPlayEdit&gt;&gt;ok&nbsp; method fails.</div>
<div>&nbsp;</div>
<div>Any pointers would be greatly appreciated.</div>
<div>&nbsp;</div>
<div>Thanks,</div>
<div>Frank</div>