JMX Monitor Setup
Java GC monitors can be enabled/disabled from ND Config UI through single click configuration using option "Enable/Disable Java GC Monitor".
The option is available under ND Config -> Profile (select the profile) -> Advance Settings -> Select Monitors -> Select Checkbox "Java GC Monitor" and press "Save" button.
For custom JMX MBean metrics, we need to create a configuration file, which then can be used to fetch the data from MBean. Providing a UI for configuring this is planned in our 2019 roadmap.