From http://answers.splunk.com/answers/188709/how-to-display-dashboard-panels-dynamically.html

example_simplexmlDashboard_splunk.xml

 <form>   <label>TestDynamicPanel</label>   <fieldset submitButton="false">     <input type="dropdown" token="show1">       <label>Dropdown1</label>       <populatingSearch fieldForLabel="temp" fieldForValue="temp">|gentimes start=-1 | eval temp="ColumnChart" | table temp</populatingSearch>     </input>     <input type="dropdown" token="show2">       <label>Dropdown2</label>       <populatingSearch fieldForLabel="temp" fieldForValue="temp">|gentimes start=-1 | eval temp="LineChart" | table temp</populatingSearch>     </input>     <input type="dropdown" token="show3">       <label>Dropdown3</label>       <populatingSearch fieldForLabel="temp" fieldForValue="temp">|gentimes start=-1 | eval temp="Table" | table temp</populatingSearch>     </input>   </fieldset>   <row>     <panel>       <chart depends="$show1$">       <title>Details for $submitted:sourcetype|s$</title>      <searchString>index=_internal | timechart count</searchString>         <earliestTime>-15m</earliestTime>         <latestTime>now</latestTime>         <option name="charting.chart">column</option>     </chart>       <chart depends="$show2$">       <title>Details for $submitted:sourcetype|s$</title>      <searchString>index=_internal | timechart count</searchString>         <earliestTime>-15m</earliestTime>         <latestTime>now</latestTime>         <option name="charting.chart">line</option>     </chart>       <table depends="$show3$">         <searchString>index=_internal | timechart count</searchString>         <earliestTime>-15m</earliestTime>         <latestTime>now</latestTime>       </table>     </panel>   </row> </form>