Choose a Trace Reference

Select the item from the Navigator and right-click to bring up its context menu.
Choose Show as Trace Reference.
The “Choose Reference” command in the Trace Reference drop-down menu of the Standard Toolbar
The Choose Trace Reference dialog box appears. This is a Navigator-like structure, with only those items available which are eligible to use as a Trace. (In the View Map, View Properties are also displayed.) Choose the desired Trace Reference and click OK to display it as a Trace.