Thank you for your reply.
Hopefully the following information may provide some more help to you.
You can alter the Seed in the Column Generation settings. In the 'Tables to populate' list down the left hand side, you can expand each table to see the columns that make the table.
Select a column so that it highlights in yellow and the Column generation settings will be displayed
By default, every column has a different seed. The seed for the first generated column of the first table in the Tables to populate list is 0; for each subsequent generated column in that table, the seed is increased by 1. For the second table, the seed value starts at 1025, and so on.
You can alter the seed value and generate values that are shuffled, to produce a different set of results.