By Assembly:
Shows all PCNs grouped by the affected assemblies. Only PCNs that have at least one mapping are displayed, because only these can affect an assembly.
PCN which have only mapped parts (XPN) whose IPN are not part of an assembly are not displayed here.
Use the plus symbol to expand the PCN which affects the Assembly.
Use the button Details 
to go to the PCN Inspector in order to inspect all of the PCN's data and may export it into a zip container.
The buttons on the right bring you into the several areas in PCN processing. See List Buttons for more details.
