Create A Custom Column On The Classic Order Form

The default column name is 'Job No.'
To edit the column name, In the main window (not the order window), choose Options - Order form fields and Item field names, The lower right corner of the window has a field labeled 'Classic Extra Column Name', Name the field as desired here.
The column name should be limited to 12 characters, then save the changes
This column may be auto filled with the item id field (or reference assm, dept, etc)

With the Print Options window, choose the Custom Column option under Classic

The Column is located to the far right in the order form window, columns can be adjusted for the column to remain visible

The Column is printed after the description column

Optional set the column to use the Item ID number

Use the Item ID, located in the item edit window, for anything you may require