leaddany,

Below is what I understood from what you are trying to describe. 

1. You have set some values for fields in HR Service Table [say for a particular service] under HR Service Additional Information.

 The fields are service_table_fields and subject_person_related_lists 

2. Now, if a HR case is created for this HR Service, you are expecting to see the HR Service Additional Information tab with the fields service_table_fields and subject_person_related_lists  populated with the values you have set in the HR Service record in Step 1. 

If what I have described is true, then you are trying to connect the dots that dont exist at all. 

HR Services has service_table_fields and subject_person_related_lists fields. Where as the HR Case table[say the parent or any childlike workforce admin table] doesn't have those fields at all. So you cannot expect these fields to appear in the HR case. You might see fulfillment_instructions that is common between HR case and HR Service, which might have given you an impression that HR Service Additional Information fields would also be present in HR Case. 

I think you need to create these fields on the HR case Table[parent or the child table where you want the fields to be present] and then do some scripting to populate these.

Thank you,

Aman Gurram