Dear Pjiang, I have a question about AOS status

If I am the primary applicant of NIW I485 and I already start to use my EAD,then my status is AOS.

May I submit another I485 application as a dependent of LD and use the EAD
from the new dependent I485 application?

Because I may change my field and I am worried that my I485 is denied. It is better for me to use the dependent EAD but that is not available now. So I wonder whether I can transfer from my primary EAD to dependent EAD if possible.

Thanks