@marziaolla, Try the following Run anywhere dashboard example. It uses post-processing to identify the second value in the dropdown and sets the same as a token for default value.
PS: If the search for Dropdown returns only one result, the same will be set as default value. Also in case the Search does not return any results, I have used Static All option to be set as default value.
<form>
<label>Second Value in the list</label>
<!-- Your Search to populate the second item from the list should go here --->
<search base="baseComponentSearch">
<query>| head 2 | tail 1
</query>
<done>
<!-- In case the Search does not return any results Static Option All should be selected -->
<condition match="$job.resultCount$==0">
<set token="tokDefaultSelectedComponent">*</set>
</condition>
<!-- Set the token using Search Event Handler's default token result.<yourFieldName> -->
<!-- If the Search returns two or more results 2nd result will be selected -->
<!-- If the Search returns only one result, the same will be selected -->
<condition>
<set token="tokDefaultSelectedComponent">$result.component$</set>
</condition>
</done>
</search>
<fieldset submitButton="false">
<input type="time" token="tokTime" searchWhenChanged="true">
<label></label>
<default>
<earliest>-7d@h</earliest>
<latest>now</latest>
</default>
</input>
<input type="dropdown" token="tokComponent" searchWhenChanged="true">
<label>Select Component</label>
<fieldForLabel>component</fieldForLabel>
<fieldForValue>component</fieldForValue>
<search id="baseComponentSearch">
<query>index=_internal sourcetype=splunkd log_level!="INFO" earliest="$tokTime.earliest$" latest="$tokTime.latest$"
| stats count by component
| sort - count
| head 5</query>
<earliest>-24h@h</earliest>
<latest>now</latest>
</search>
<choice value="*">All</choice>
<default>$tokDefaultSelectedComponent$</default>
</input>
</fieldset>
<row>
<panel>
<chart>
<search>
<query>index=_internal sourcetype=splunkd log_level!=INFO component="$tokComponent$"
| timechart count by component</query>
<earliest>$tokTime.earliest$</earliest>
<latest>$tokTime.latest$</latest>
</search>
<option name="charting.chart">line</option>
<option name="charting.drilldown">all</option>
<option name="refresh.display">progressbar</option>
</chart>
</panel>
</row>
</form>
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