Compare 2 queries in a dashboard

[Joe20]

hello All, 

I have created a dashboard with two panels. The first panel runs a search (query below) for time-window-1 and the second panel runs the same search for time-windows-2.  Both the time windows are customizable on the dashboard and passed as parameters to the query as shown below. 

index=dev sourcetype!=warn component AND errormessage earliest=$field1.earliest$ latest=$field1.latest$ | dedup errormessage,component

Currently each panel displays the unique results in the respective time window.

I want  the dashboard to compare the results of time-window-1 and time-window-2 and display :

1. The unique results that are present in time-window-1 and NOT in time-window-2   

2. The unique results that are present in time-window-2 and NOT in time-window-1

Please help.

[Joe20]

Here is the source for the dashboard. 

<form>
  <label>test-1</label>
  <fieldset submitButton="false">
    <input type="time" token="field1">
      <label></label>
      <default>
        <earliest>-24h@h</earliest>
        <latest>now</latest>
      </default>
    </input>
    <input type="time" token="field2">
      <label></label>
      <default>
        <earliest>-24h@h</earliest>
        <latest>now</latest>
      </default>
    </input>
  </fieldset>
  <row>
    <panel>
      <title>time-window-1</title>
      <event>
        <search>
          <query>index=dev sourcetype!=warn component AND errormessage earliest=$field1.earliest$ latest=$field1.latest$ | dedup errormessage,component</query>
          <sampleRatio>1</sampleRatio>
        </search>
        <option name="count">20</option>
        <option name="list.drilldown">none</option>
        <option name="list.wrap">1</option>
        <option name="maxLines">5</option>
        <option name="raw.drilldown">full</option>
        <option name="rowNumbers">0</option>
        <option name="table.drilldown">all</option>
        <option name="table.sortDirection">asc</option>
        <option name="table.wrap">1</option>
        <option name="type">list</option>
      </event>
    </panel>
    <panel>
      <title>time-window-2</title>
      <event>
        <search>
          <query>index=dev sourcetype!=warn component AND errormessage  earliest=$field2.earliest$ latest=$field2.latest$ | dedup errormessage,component</query>
          <sampleRatio>1</sampleRatio>
        </search>
        <option name="count">20</option>
        <option name="list.drilldown">none</option>
        <option name="list.wrap">1</option>
        <option name="maxLines">5</option>
        <option name="raw.drilldown">full</option>
        <option name="rowNumbers">0</option>
        <option name="table.drilldown">all</option>
        <option name="table.sortDirection">asc</option>
        <option name="table.wrap">1</option>
        <option name="type">list</option>
      </event>
    </panel>
    </row>
</form>