Inserting a DFF in the worksheet is sometimes required if an Attribute column is missing for the Context selected.
If this is the case, manually create the appropriate columns in your worksheet by copying an existing column (e.g. Attribute1), insert it and then rename the column header to the correct Attribute number (e.g. Attribute12). Note – Only update the number suffix and ensure the new column heading has the same number of space characters.
You can insert the DFF as described above, to either the Template123 (Refer to section: Customize the Template Sheet) or your current worksheet. The advantage of making the change to the Template123 is that any new sheets created (using the button on the Wizard ribbon) will include the DFF column.