This object may be used to create or delete a timeline control
specification.
Once created data sampling starts based on the value of
cwrTlAction. The data capture depends on the value of
cwrTlThreshIndex.
The actual data is collected based on the cwrTlThreshIndex,
if cwrTlThreshIndex is 0 then there is no stop trigger associated
with this timeline and the data samples are captured and returned
immediately. If cwrTlThresIndex is not 0, then the data samples
are captured when the threshold fires.