Layout Line ITEM table belonging to the business process record

In primavera unifier, I have a line item type business process called ppg. the upper form called (ppg) and the detail form (line item) called market. I need to create a business process, and on the form I need to choose the project (I will use data picker and line ITEM data picker), and would like to display all the line Item (table) belonging to the PPG record I choosen on this for or in other tab. Any help or suggestion please.