originOffsetRequest
This generates requests for a certain window around the time the event occured.
Example
<originOffsetRequest>
    <beginOffset>
        <unit>MINUTE</unit>
        <value>-20</value>
    </beginOffset>
    <endOffset>
        <unit>HOUR</unit>
        <value>1</value>
    </endOffset>
</originOffsetRequest>
    Places this can be found
In requestGenerator there is a choice between all of the following