Context is the element, from which a relation map is drawn and the analysis is started. You can set any element as the context.

To set an element as the context of the relation map

• Drag the selected element from the Model Browser to the relation map.
• In the Criteria area, click the  button next to the Context box and then select the element in the Select Context Element   dialog. 

• If the Make Element as Context on Selection option is turned on, click any node to make it the new context of the of the structure. To turn this option on, click  on the toolbars and select Make Element as Context on Selection.