# Example 2: Selecting a Check Box Enables a Combination Box

In this example from the Summary Statistics task, the Quantile method drop-down list is enabled only if the user selects the check box for at least one of the quantile options. (In the Tasks section, the Summary Statistics task is in the Statistics group.)
In this example, P1, P5, P10, Q1, MEDIAN, Q3, P90, P95, and P99 are the names of the check boxes. QUANTILE is the name of the combination box.
```<Option name="P1" defaultValue="0" inputType="checkbox">1st</Option>
<Option name="P5" defaultValue="0" inputType="checkbox">5th</Option>
<Option name="P10" defaultValue="0" inputType="checkbox">10th</Option>
<Option name="Q1" defaultValue="0" inputType="checkbox">Lower quartile</Option>
<Option name="MEDIAN" defaultValue="0" inputType="checkbox">Median</Option>
<Option name="Q3" defaultValue="0" inputType="checkbox">Upper quartile</Option>
<Option name="P90" defaultValue="0" inputType="checkbox">90th</Option>
<Option name="P95" defaultValue="0" inputType="checkbox">95th</Option>
<Option name="P99" defaultValue="0" inputType="checkbox">99th</Option>
<Option name="QUANTILE" defaultValue="QMOS" inputType="checkbox"
width="100%">Quantile method:</Option>
<Option name="QMOS" inputtype="string">Order statistics</Option>
<Option name="QMPPA" inputType="string">Piecewise-parabolic
algorithm</Option>

<Dependency condition="\$P1=='1' || \$P5=='1' || \$P10=='1' || \$Q1=='1' ||
\$MEDIAN=='1' || \$Q3=='1' || \$P90=='1' || \$P95=='1' || \$P99=='1'"/>
<Target conditionResult="true" option="QUANTILE"
action="enable"/>
<Target conditionResult="false" option="QUANTILE"
action="disable"/>
</Dependency>
```
By default, no check boxes are selected, so the Quantile method drop-down list is not available. Here is the result that appears on the Options tab:
If you selected one or more of these check boxes, the Quantile method drop-down list is available. Here is the result that appears on the Options tab: