Try like this
<form>
....
<fieldset>
<input type="checkbox" token="application">
<choice value="application1">Application1</choice>
<choice value="application2">Application2</choice>
<choice value="application3">Application3</choice>
<delimiter> OR index=</delimiter>
<prefix>index=</prefix>
<suffix>)</suffix>
<valuePrefix>"</valuePrefix>
<valueSuffix>"</valueSuffix>
</input>
</fieldset>
<row>
<panel>
<table>
<title>Top source types in the last 24 hours</title>
<search>
<query>
$application$ | eval ID=coalesce(application1_id,application2_id,application3_id) | search ID=$id$ | table ID STATUS
</query>
<earliest>-24h</earliest>
<latest>now</latest>
</search>
<option name="count">5</option>
<option name="rowNumbers">0</option>
</table>
</panel>
</row>
</form>
... View more