Annotates components in ortho drawings.
 Ribbon: Ortho View
 Annotation panel 
 Ortho Annotate
 Command entry: 
plantorthoannotate
Orthographic annotations display information associated with valves, equipment, and components in an orthographic drawing. After you create orthographic views, you can annotate components in the 2D orthographic drawing.
Select a component to annotate:
Specify annotation style or [?]:
Select annotation position or [Rotate]:
Specify rotation angle <0>
Specifies the angle, 90, for example.