In the "JMX" tab of the "catworkx Metrics Plugin" dialog, you can start and stop JMX monitoring.
If JMX is initialized, the left status indication changes to "Initialized" (green).
If the JMX is running, the right status indication changes to "Started" (green).
If a problem appears when starting the job, the status indication may not change to green. In this case, you have to check the log files.