Unfortunately, no. “Learning from Teaching” CME activities have to be developed in compliance with all applicable ACCME requirements (C1-C13). This includes all the required planning items (gaps, needs, format, etc.). A provider could plan and accredit a “Teaching from Learning” activity for faculty simultaneously with the live course, but it would have its own gap, needs, LOs, etc., from the course itself.
You can find more information about this activity type here.