Change the template, as follows:
<!-- Template Start: eCfgControlCheckPriceMultiLevelJS.swt -->
<swe:include file="eCfgPort_HeaderJS.swt"/>
<tr>
<td colspan=3>
<swe:for-each id="500" CfgLoopType="DomainAndChildren" startValue="1500" count="Dynamic" iteratorName="101Id"
Usage="CheckBox"
CfgFieldList="CfgFieldName:Name, CfgUIControl:lblName, HtmlAttrib_width:310, Default:Y*
CfgFieldName:RequireMoreChild, Default:Y*
CfgFieldName:List Price, CfgUIControl:lblListPrice, DataType:DTYPE_CURRENCY, NeedRefresh:N, HtmlAttrib_align:center, HtmlAttrib_width:80*
CfgFieldName:Current Price, CfgUIControl:lblYourPrice, DataType:DTYPE_CURRENCY, HtmlAttrib_align:center, HtmlAttrib_width:80*
CfgFieldName:Explanation, CfgUIControl:lblExplanation, HtmlAttrib_align:center*
CfgFieldName:Customize, CfgUIControl:lblCustomize, HtmlAttrib_align:center"
>
<swe:control id="swe:111Id + 4000" CfgHtmlType="CfgCheckBox" ForceRefresh="Y"
CfgJSShow="showCheckBox" CfgJSUpdateExclusion="updateExcludedItemForPort" CfgJSUpdateSelection="updatePortItemsForCheckBox"/>
</swe:for-each>
</td>
</tr>
<!-- LM: for each selected product of the current relationship, include full UI starting from group level -->
<tr>
<td width="100%" colspan="3">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<swe:for-each id="500" CfgLoopType="Children" startValue="1500" count="Dynamic" iteratorName="101Id">
<swe:switch>
<swe:case condition="Default, TestFieldValue, Operator:==, FieldName:CanDrillDown, FieldValue:Y">
<swe:for-each id="110" CfgLoopType="CurrentGroup" startValue="8100" count="Dynamic" iteratorName="100Id">
<tr>
<td width="10%">
</td>
<td width="80%">
<swe:include id="swe:151Id" CfgHtmlType="CurrentGroup"/>
</td>
<td width="10%">
</td>
</tr>
</swe:for-each>
</swe:case>
<swe:default>
<swe:for-each id="110" CfgLoopType="Attribute" startValue="1100" count="Dynamic" iteratorName="IncId" >
<tr class="listRowOff">
<td class="row" width="100%" class="AppletBlank">
<swe:include id="swe:151Id" CfgHtmlType="Children"/>
</td>
</tr>
</swe:for-each>
<tr><td width="100%" class="AppletBlank"></td></tr>
<tr><td width="100%" class="AppletBlank"></td></tr>
<swe:for-each id="100" CfgLoopType="Port" startValue="2100" count="Dynamic" iteratorName="IncId" >
<tr class="listRowOff">
<td width="100%" class="row" class="AppletBlank" >
<swe:include id="swe:151Id" CfgHtmlType="Children"/>
</td>
</tr>
</swe:for-each>
<tr><td width="100%" class="AppletBlank"></td></tr>
<tr><td width="100%" class="AppletBlank"></td></tr>
</swe:default>
</swe:switch>
</swe:for-each>
</table>
</td>
</tr>
<swe:include file="eCfgPort_FooterJS.swt"/>
<!-- Template End: eCfgControlCheckPriceMultiLevelJS.swt -->