requestGenerator
Ingredients that generating requests to the seismogram servers
Example
<phaseRequest>
  <beginPhase>ttp</beginPhase>
  <beginOffset>
      <unit>SECOND</unit>
      <value>-60</value>
  </beginOffset>
  <endPhase>ttp</endPhase>
  <endOffset>
      <unit>SECOND</unit>
      <value>360</value>
  </endOffset>
</phaseRequest>
    Places this can be found
combineRequest contains this directly
In vectorRequestGenerator there is a choice between all of the following
waveformArm contains this directly