Hi Hakkim,
When using the Dashboarding tool you can not build composite queries like you can in Reporting right inside the tool. Instead, you would be using the web-based modeling tool, which starting with version 11.1.5 has a new perspective that gives a diagram view of the 'Custom tables' as these composite queries/tables are called in that tool. Here is a picture:
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HENK CAZEMIER
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