30.13.7 Commands for Table Columns

The command table-insert-column inserts a column of cells to the left of the current row in a table. This pushes the current column to the right. To insert a column to the right side of the rightmost column, place point to the right of the rightmost column, which is outside of the table, prior to invoking this command. A numeric prefix argument specifies the number of columns to insert.

A command table-delete-column deletes a column of cells at point. A numeric prefix argument specifies the number of columns to delete.