Role Authority when running pgadmin3

I am new to pgadmin3 and PostgreSQL.

I have set the system user 'jet' to be a superuser.

I have a database user 'videoworks', and a database videoworks.

When I start pgadmin3 from bash and logged in as 'jet', most of
the configuration tools are available to me on the videoworks
database, except Tools => Server Configuration.

At this point:    Login    Createdb    Inherits
...are set to yes
    Superuser    Create Roles    Update catalogs

are set to no
 ...........for user videoworks

User 'jet' is set to yes for everything.

If I set the database user 'videoworks' as a superuser,
then restart the server, and restart pgadmin3 I am able to
use Tool => System Configuration

My question is: I thought it was a bad Idea to grant Superuser status to all
roles, but without doing so how am I able to use the
    TOOL => System Configuration

when I start pgadmin3 and I am logged in to the shell as 'jet'?

Here is my pg_hba.conf at this point:

# TYPE  DATABASE    USER        CIDR-ADDRESS          METHOD
local   all         postgres                        ident
local    all    jet    ident
# "local" is for Unix domain socket connections only
local   all         all                         md5
# IPv4 local connections:
host    all         all         127.0.0.1/32          md5
# IPv6 local connections:
host    all         all         ::1/128               md5

Thank you,
   Jet