Adding Kid's Application as depdents for Stamping

Spouse and I have dropdown box eligibility while Kid is not having.
So, we created two visa appointment ( CGI application) and paid 3 visa fees.
(Two for us and one for Kid)

Now, we are seeing that in person consulate appointments are available while drop-down box not.

So, we are thinking to add ourselves in Kid’s applicant as dependents.
Is that possible?

  1. we have already one application with paid fees. Can receipt ported?
  2. With original applicant being required stamping, we also need to but that is fine as we can atleast get appointment.