Layout > Using Annotations > Tables > About Tables
  
About Tables
Use the commands in the Table group of the Annotate tab to create and modify tables in a layout. You can create a table by choosing one from the table templates or from saved table files, or you can create a table by defining the number of columns and rows. After you create a table, you can modify it by adding columns and rows, merging cells, hiding and displaying cell boundary lines, and rotating the table in a layout.