Double-click Sheet1 on the
Sheets tab 
.
Sheet1 appears in the graphics
area. On the Sheets tab, the icon
for Sheet1 changes to 
and the text is highlighted.
Click Zoom to
Area 
(View toolbar).
In the graphics area, zoom to show the drawing view with the section line and the associated section view.
Click Select 
(View toolbar), then move the pointer over the section line
A-A in the drawing view.
Both the section line and the title of the associated section view, A-A, are highlighted.
Select the section line A-A.
The graphics area zooms to display only the associated section view A-A.
Select section lines in a
view or annotations in a section view to switch between the related views.
You can also switch between detail callouts and detail views the same
way.