I want to display the full exchange of pulse messages (happens either in parent or child cases) in parent case and all child cases. If the message is posted on either the parent or any of the child cases, they should not be visible only at subcase or parent case level level, instead it should be visible across all the parent and child cases and search should work on the pulse messages displayed from both parent and child cases displayed in the parent case or child case level.

To display pulse messages posted in the child case context in the parent case level, I created a pulse feed configured with source as custom DPage in PegaSocial-Message class which calls D_pxPosts for all child case keys internally to fetch the messages and associated this pulse feed to parent case. Now I'm able to see the messages posted in the child case context in the parent case.

But the pulse search is not working as expected. i.e. Pulse search searches only on the messages in the parent case context but not on the child case messages as well. 

Need suggestions on the best approach to address this expectation in a theme cosmos application.