Filed DS 230 instead of I 485 and interview Scheduled in home country

[Laramischa]

Hi,

We have never filed I 485 and got today an email that an interview will be scheduled in my home country.
But I am right now in the USA and would therefore like to file I 485.
Is this still possible this far in the process? I have nothing anymore in my home country, no address etc so cannot really go there and wait for the period they need to process everything after the interview