See also: Delete Dependent Elements
Many elements reference (or need) other elements.
The Element References dialog-box (Read-Only) is the list of elements (called the Reference Elements) that must be in the model to build a more complex element.
To see the Reference-Elements for an element:
1.Click an Element in the Graphics-Area or the Assembly-Tree
2.Right-click the element in the Selection-Window
3.Click Show Element references in the contextual-menu
The list includes each
•Reference Element name
•Reference Element Type
•Reference Element Owner
E.g.: When you add a Pin-Joint, you select two Points in two different Parts.
Thus, the Pin-Joint must reference (needs) the two Points, which are owned by the Parts.