Each watch expression is displayed in the speedbar. Complex data
types, such as arrays, structures and unions are represented in a tree
-format. To expand or contract a complex data type, click @kbd{Mouse-2}
+format. Leaves show the name of the expression and its value and the
+data type displays as a tooltip. Higher levels just show the name and
+the data type.
+
+To expand or contract a complex data type, click @kbd{Mouse-2}
on the tag to the left of the expression.
@findex gdb-var-delete