About object lists and trees
Object lists display objects in table form. You can have a number of related object panes on the right-hand side of the content window and view them in any combination of tiled or tabbed panes.
In an object list, such as an Items list, you can select objects, change the order in which objects are displayed, resize columns in the list, and save the list. You can also filter the rows in the objects list to display only rows containing a filter string in a specified column. The object window toolbar buttons enable you to perform various actions.
Object trees display hierarchical objects in a tree view. Object trees are either design part structures or project or stream folder views. You can navigate the tree and select a subfolder to view the related objects belonging to that subfolder.