Add or change rows and columns in Keynote for iCloud
You can add, delete, and rearrange rows and columns in a table. There are three types of rows and columns:
Body rows and columns: Body cells contain the table data, and appear below the header rows and to the right of the header columns.
Header rows and columns (if any): These appear at the top and left side of the table. They usually have a different background color from the body rows, and they’re typically used to identify what the row or column contains. Data in header cells isn’t used in calculations, but the text in a header cell can be used in formulas to refer to the entire row or column.
A table can have up to five header rows and five header columns.
Footer rows (if any): These appear at the bottom of a table. A table can have up to five footer rows.