If the Item List is in Tree mode and you enable various item components, such as parts and assemblies, you can expand (open) and collapse (close) these components by category or all at once. To do this, point anywhere in the Item List and right-click, point to Expand or Collapse, and select the required option.
Expand/Collapse options from the View menu are shown in the following figure.
The following figure provides an example of expanded cabinet parts.
The following figure provides an example of collapsed cabinet parts.