Hi Kreeblah,
Viscosity actually has proper two-factor OTP support via OpenVPN’s challenge/response protocol. It sounds like your OpenVPN setup is accepting your OTP as part of the username/password prompt instead of making use of the protocol. Changing your server setup to use challenge/response will allow you to save your username/password in Viscosity and have a seperate prompt for your OTP as required.
Please see the following forum post for some examples:
https://www.sparklabs.com/forum/t/otp-box-in-login-prompt/696/1
Cheers,
James
