edit XMl .ardour

 <Processor id="110225" name="Amp" active="yes" user-latency="0" type="trim">
        <Controllable name="trimcontrol" id="110227" flags="GainLike" value="1.000000000000"/>
      </Processor>
      <Processor id="47150" name="return 2" active="yes" user-latency="0" own-input="yes" own-output="yes" type="intreturn" bitslot="1"/>
      <Processor id="48824" name="HybridReverb2" active="no" user-latency="0" type="lv2" unique-id="http://www2.ika.rub.de/HybridReverb2" count="1">
        <lv2 last-preset-uri="" last-preset-label="" parameter-changed-since-last-preset="no" state-dir="state27"/>
      </Processor>
      <Processor id="91609" name="IR" active="no" user-latency="0" type="lv2" unique-id="http://factorial.hu/plugins/lv2/ir" count="1">
        <lv2 last-preset-uri="" last-preset-label="" parameter-changed-since-last-preset="yes">
          <Port symbol="port_reverse" value="+0.000000"/>
          <Port symbol="port_predelay" value="+0.000000"/>