While designing Run control records just ensure the following :
On your parent Record ensure both Oprid and Run Control id is included as key and required fields and only Run Control Id is the search key and list box item (Oprid is automatically populated as the user id).
On your child record also ensure both Oprid and Run Control id is included as key and required fields and also include one or more key fields for the child record
While designing the Run control page ensure the following :
Include the PRCSRUNCNTL_SBP which has the Run control Id field and the Report Manager and Process monitor field included (should be at level 0 )
Include any other fields form the parent record in the page
Drag and drop a scroll .
Within the scroll, include the additional key and non key fields form the child record
Go to the order tab of the page in app designer and ensure the sub page and the parent record fields are in level 0 and child record fields are in level 1
Based on this design, the oprid was able to be successfully carried to the child record in our run control tables.