druid_admin/default/data/ui/views/migration_status.xml

<form>
  <label>Migration Status</label>
  <fieldset submitButton="false">
    <input type="time" token="time" searchWhenChanged="true">
      <label/>
      <default>
        <earliestTime>-72h@h</earliestTime>
        <latestTime>now</latestTime>
      </default>
    </input>
  </fieldset>
  <row>
    <panel>
      <title>Migration Sessions</title>
      <html>
          <div id="migrations-search"
            class="splunk-manager"
            data-require="splunkjs/mvc/searchmanager"
            data-options='{
                "search": { "type": "token_safe", "value": "`gantt_migrations`" },
                "earliest_time": { "type": "token_safe", "value": "$$time.earliest$$" },
                "latest_time": { "type": "token_safe", "value": "$$time.latest$$" },
                "cancelOnUnload": true,
                "preview": true
            }'>
         </div>

         <div id="migrations-view"
            class="splunk-view"
            data-require="app/gantt/components/gantt/gantt"
            data-options='{
                "managerid": "migrations-search",
                "startField": "_time",
                "durationField": "duration",
                "categoryLabel": "Server",
                "categoryField": "tsmserver",
                "seriesLabel": "Speed",
                "seriesField": "speed",
                "seriesSort": "false",
                "drilldownSearch": "search index=tsmlogs tsmserver=$tsmserver$ session=$session$ process=$process$",
                "extrasField": "extras"
            }'>
         </div>
      </html>
    </panel>
  </row>
</form>