During case processing Pega stores all the executed stages,processes and steps in pxStageHistory page list. We are leveraging this information to show case summary view (custom).
We have hierarchical steps i.e. We have a stage and within that we have a process. within that flow we are referring another flow. But while case processing Pega only maintains one level(first) of
steps executed in pxStageHistory. It seems it doesn't store this hierarchical steps.

Out business users are asking to show all the steps executed. Could you please help us with information that is there any table/property on clipboard that pega will have all the steps 
that are executed as part of case processeing.