USE-COLUMN {column_number_int_lit|_var|_col}
column_number_int_lit|_var|_col
Number of the defined column (not the location on the page). For example, if five columns are defined, then the column_number_int_lit|_var|_col can be 1 to 5.
The column must be previously defined with the COLUMNS.
To stop printing within columns, use a column number of 0 (zero). Printing returns to normal; however, the columns remain defined for subsequent NEXT-COLUMN or USE‑COLUMN commands.