A/C Compressor Mode setting not visible in Techstream

Here's what the A/C customization screen looks like in Techstream 12.00.127 on my 2006 Gen2:


According to the repair manual (AC-27), there's supposed to be a "compressor mode" option, which I want to change to manual:

I connected to my brother's 2004 that does have compressor mode set to manual (by the dealer years ago), and it doesn't show up in the list of customizations for his car, either.

I'm able to see the data list and trouble codes, etc, in Techstream, so I believe the cable and software to be working. Other customizations I've made have worked fine. Any ideas?

Thanks