This question is in reference to Atlassian Documentation: Adding the Pie Chart Gadget
Is it possible to group issues with a specific label? for instance, status "X" and status "Y" in one label "Z".
Not for the purposes of the chart - X and Y are two different values.
You could automate the workflow, set a custom field to a value at the right times in the workflow, and use that in the chart instead.
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