How to enter password for supervisor?

I use ajenti 2.1.15 with ajenti.plugin.supervisor, but it's not working because i use password for supervisor:

I can't find plugin settings like in ajenti 1. It's possible to set password now?

P.S. I can't enter password in /etc/supervisor/supervisord.conf because this file requires "chmod 644" for working (supervisorctl pritns "Error: could not read config file /etc/supervisor/supervisord.conf" without this) and this is very unsafe.

P.P.S. Написано с использованием Google Translate; могу написать всё по-русски, если так будет лучше.)