Re: CLI: --showReferences results in MKS124819: Invalid option: "showReferences"
The documentation is wrong for this command. The --showReferences option will not work. You also can't see the References column for Dashboards in the GUI.
The only way I've found to get a list of the queries, reports, and charts used in a dashboard is to look at the Layout. You can look through this in the GUI, but I find it easier to search the xml directly.
You can get the XML output for the dashboard layout with this command:
im viewdashboard --showlayout [dashboard name]
Within the XML, search for QueryLink, ReportLink and Chart. You may also find references in a URLLink.
<Chart filtered="True" name="Open Items - Team"/>
<QueryLink filtered="True" name="My Open Items"/>
text="Global ILM Dashboard" textStyle="Hyperlink"/>
<ReportLink filtered="True" inline="True"
name="My Open Items"/>