Will they allow to biometric for h4 during drop box appointment

I holds valid B1 visa and have done
ten printed earlier. because of interview waiver program. I m eligible for Dropbox and Booked an drop box appointment for my family (myself, spouse and our kids using my account) on the same.

Appointment letter shows Dropbox for everyone (my family).
My spouse don’t hold any US visa. Kindly let me know if biometric is required for her as this will be first entry and will that
be complete during above appointment schedule if required?.