Hello!
These options exist but are currently disabled, as we're experiencing a very high number of registrations and login requests, it will be enabled later on to avoid scams etc!
As for symbols in passwords, the Lineage II client unfortunately does not support them.
However, you can secure your account by binding it to your PC:
➡️ Press ALT + B → Options → Account Security
From there, you can lock your account so it only logs in from your device. 🔒
If you need anything else, let us know!