Hello!
I would have such a problem that I managed to do the double authentication with the usermanager. So when I want to connect to the VPN, I ask for the username and password in the form below: <original password>+<six digit code from Google Authenticator>
Now I want to make this user friendly.
However, if I insert the following line into the client configuration: static-challenge "Enter Authenticator Code" 1
then it doesn't work. Can you help me how I can make this user friendly?

do you use otp option in VPN client? I use usermanager with Google auth but I enter the code in the password field

yes I would like to make this more convenient.
Because I find a 10-character generated password+authenticator code solution quite uncomfortable.

I don't use password, only 6 digit authenticator code