[AMSAT-BB] Roving and LoTW

Hello experienced roving folk. I took my satellite gear out yesterday and signed G0MRF/P  When I tried to upload the log to LoTW, I can add JO00 as an additional location, but it does not allow me to add the /P suffix to my call.

Is there any way around this or do I have to apply for an additional callsign certificate? Next time.....I'll just forget about the /p suffix  !!

Thanks David  G0MRF