Attaching Note Leaders to an Inserted Custom Symbol
Click Note Leader in the Annotation group on the Detailing tab.
Move your mouse over the symbol and the possible attachment points will
appear as white circles.
Click an attachment point.
For a segmented line, click to set each point of the note leader
line.
End the note leader by clicking a vertex, edge, or face to attach the end of
the note leader, or double-click to end the note leader at any
point.The end of the note leader is an arrow unless you attach it to
a face.