The last thing we need to do is set up some user modes. Click on the 'Connect commands' tab, and click on the 'Add' button. Then enter the command mode %n +GCRp. This will do several things which will help protect your privacy, but most importantly will hide non-common channels in /whois queries.

That should be it! Assuming you've done everything correctly so far, you should be able to click on 'Close' on the 'Edit Rizon' window, and then 'Connect' on the 'Network List' window, and you should be in. Moreover, any time from now on that you want to join the channel, all you have to do is start HexChat and connect to Rizon. Everything else should be automatic from now on.