Hi,
Your case seems quite interesting. Because in both these screens, the desired options are disabled.
As a workaround, you can install SAP logon pad in another PC and create systems there. From there you can copy the saplogon.ini file in your system. After that, restart your SAP Logon Pad.
Also make sure that saplogon.ini file in your system has proper read-write permissions. Maybe, this file has only read options and that is why your editing options are disabled.
Regards,
Priyankle