Hi there,
Here's a screen shot of corresponding values in the h2-engine.cfg file:
It's still possible that you could have issues with 'conn.pxypass' due to the hashed pw. If you leave this blank, and 'conn.pxysave' is set to '0', then you should be promted during each connection attempt.
The only thing you really have to worry about with regards to proxy connections is that you probably won't receive client status updates, because those stem direct from LMI servers.