If the text is in a text box, table, or shape, first click the Text tab at the top of the sidebar, then click the Layout button.
Use the controls in the Columns section to set the number of columns and their spacing:
Set the number of columns: Click the arrows next to the Columns value field.
Set column spacing: Double-click the values in the Column and Gutter columns, then type the width for the column.
Set different column widths: Deselect the checkbox next to “Equal column width.”
When you insert a column break, Pages inserts a formatting character called an invisible. You can Set pagination and line and page breaks in Pages on MacAdd or delete a table in Pages on Mac