H4 for dependents in India while I am in L1B toH1B COS

I am in USA in L1B currently. My family is in India. I am in process of L1B to H1B change of status.

When my COS is approved I am planning to go to India to get my H1B stamped.

Can I apply for my family’s H4 along with my H1B stamping (in the same appointment)?

Or, only after getting my H1B stamped, should I apply for my family’s H4?

The entire family can appear for H-1 and H-4 stamping together.