Yes you can set this within the Job Resource window.
Open the Job Resource Window
Select Options from the menu
Tick to Auto Expand either Materials or Composites, OK
How to see the Materials section expanded within job resource window
Within the Job resource window the Materials and Composite section have an Expand and Collapse button next to each Resource Heading to view each component. Can this be set to Expand automatically?
Written by Rares Iacob