To select all values from the drop down list box we use "storeSelectOptions" command. Following is the example for the same.
Example for "storeSelectOptions" Selenese command:
<tr>
<td>open</td>
<td>/</td>
<td></td>
</tr>
<tr>
<td>clickAndWait</td>
<td>link=Advanced search</td>
<td></td>
</tr>
<tr>
<td>storeSelectOptions</td>
<td>tbs</td>
<td>test</td>
</tr>
<tr>
<td>echo</td>
<td>${test}</td>
<td></td>
</tr>