Follow-up question about Cross Chargeability.

Xiao Bai Tu, PJiang,
I am H-1B visa holder born in mainland China and my wife, a H-4 visa holder, was born in Hong Kong . I am the primary applicant for my employment-based I-485.

Will USCIS automatically process my case under Cross-chargeability category OR my attorney (or myself) needs to personally remind USCIS about my affiliation with immigration visa Cross-Chargeability? Can you please provide the step-by-step instructions on how to "remind" USCIS about my case's affiliation with Cross-Chargeability statue?

EB-3
PERM Priority Date: Oct 2005.
I-140 Approval Date: May 2006.
I-485 Receipt Date: July 2007.

Thank you!