May I ask? Could someone tell me how to add /P or /M suffix when I log in? Because I can't log in if I add /P or /M after my callsign.

I got an answer from HS staffs today.

There are 2 ways to add /P or /M after my call sign.

1. You must make a new account with your callsign + '/P' or 'M'. This means you must make another subscription.

2. You can log in with your current callsign. And verbally speak your callsign + '/P' or '/M' when QSO.