How to set EntropyMode and H.264 Level in Expression Encoder preset file?

Hello,

I want to prepare an xml preset file for transcoding files to Smooth Streaming with Expression Encoder 4 Pro. I need to make sure that the encoder uses H.264 Baseline profile Level 3.0 and also Cavlc is used instead of Cabac. How can I set the encoding parameters for Level and Cavlc in the preset file? I looked at some preset sample files like "H.264 IIS Smooth Streaming iPhone WiFi.xml" but those do not include parameters for Entropy coding and H.264 Level selection. I tried adding EntropyMode="Cavlc" as below, but that did not make any difference.
...
...
  <OutputFormat>
    <MP4OutputFormat
      StreamCompatibility="Standard">
      <VideoProfile>
        <BaselineH264VideoProfile
          EntropyMode="Cavlc"
...
...

thank you,

Mehmet