Up to three trial groups can be selected in Criteria - Trial Groups. This global trial group setting can be overridden on a column line-by-column line basis using the Assign - Trial Groups command.

During optimization, columns are sized based on these Trial Groups. The results of the design of each trial group are shown in the right most part of the table.

The total weight of each Trial Group is listed below it.

Note that the number of columns displaying trial group results are equal to the number of trial groups assigned to that column line.

To select a size from a trial group for further investigation on a per column basis, click on the size in the cell.

To select an entire trial group as your final design, click the heading above the column of sizes (i.e. "Select T.G. 1").