JMeter Properties let's us have a look at the Jmeter.Properties file that is placed within the bin folder of the jmeter installation directory you.
It gives a nice GUI view as against the files being edited.
To have a look at the Property file.
1.Right Click on the work bench.
2.Add Non- Test Elements.
Will result in displaying all properties of the JMeter.You can select to view the system properties or the JMeter Properties.