After assigning offers to each input cell, you can specify the value to use for any parameterized attributes of those offers. Each offer is listed with its parameterized attributes (if any) on the Parameters tab. If there are multiple input cells, you can choose to assign parameterized attribute values for one cell at a time or for all cells simultaneously. For example, if you assign the same offer "Gold credit card" to two input cells, High-value customers and Low-value customers, you may want to use a different interest rate (parameterized offer attribute) for each cell. In this case, you would choose the High-value customer cell and set the Interest rate to 12.9% (a more attractive offer) and set the interest to 18.9% for Low-value customers. If you wanted to set the same interest rate for the Gold credit card offer for all cells, you can set the Interest rate value once for [ All cells ].
The Parameters tab is populated with the default parameterized offer attribute values (which you entered when creating the offer).