Hello, Ubuntu Community. I'm very green with Ubuntu, so please excuse what I'm sure is a very noob question.

I am attempting to use the Mangler software. I have understood that in order to use this program, I need to have Pulse Audio installed. I have followed the steps available on the Ubuntu Wiki to get it installed and running, however I have run into a bit of a snare.
When I get to the part of the installation process where I am to add users to the pulse audio groups, it says to navigate to System > Administration > Users & Groups.
I am unable to locate this path. I can't even find "system". I have "system settings" but under there I can find no "Administration".

I feel like this is probably a really dumb question, so I'm embarrassed for asking. But a point in the right direction would be greatly appreciated.

Thanks in advance.