If you do not recieve your confirmation email within a few hours, please email haloutau@gmail.com with your username for manual validation. Your account should be activated within 24 hours.
You may also reach out via any other listed contact on Admin Halo's about page:
https://utaforum.net/members/halo.194/#about
Edit: The manual says they are independent symbols.
"Type Independent: There are only 2 markers in this type, as in type VX. Breath phonemes are built in this type. Do not forget to fill in the symbols in the independent symbol list. For details please refer to “br1,br2,br3,br4,br5” in the test project."