Use the Group Selection tool to
select the columns or bars you want to fill with the design, or
select the entire graph.
Choose
Object > Graph > Column.
Select a column design type.
If you choose the Repeating Column Type, enter a value
in the Each Design Represents text box. Also select whether to chop
or scale any fractions of the design from the For Fractions pop‑up
menu. Chop Design cuts off a fraction of the top design as necessary;
Scale Design scales the last design to fit in the column.
Select the design you want to use. A preview of the selected
design appears.
to
select the columns or bars you want to fill with the design, or
select the entire graph.