The workflow steps were inherited from cq/workflow/components/model/process as described in Extending Workflow Functionality.
AEM 6.4 has all nodes under /libs/cq/workflow/components/model marked as final (granite:FinalArea).
What is the 6.4 recommended way to extend the workflow steps with the step dialog customization?
As suggested by Kautuk, Please check
Workflow step components can be created in the same manner as any other component.
To inherit from one of the (existing) base step components, add the following property to the cq:Componentnode:
AEM 6.4 added the
granite:FinalArea to the property
jcr:mixinTypes of the nodes above.
If we extend them with
sling:resourceSuperType the Pattern Detector reports the Cross-boundary override of final marked path.
The question is how to extend the process without FinalArea violation?