To finish our model, we will insert a TableFile to record the ratio of TVs to VCRs that have been tested.
Insert another TableFile
in the top right corner of the Frame.
Rename the TableFile Results.
Open the Results table and select
Format > Inherit Format
This will deactivate inheriting the format of the table from the table in the class library.
Select the entire table by clicking
Edit > Select All.
Then change the data type of the cells by selecting
Format > Format.

On the tab Data Type select the data type Integer from the drop-down list:

Click OK to apply these changes.
Now select Format > Column Index > Active.
We have now inserted a column index in which we enter our product names.