With the Column Set Builder, you can define a column set by laying it out graphically. You can also modify existing column sets.
Column Set Builder is primarily a layout and design tool. It does not include all of the options available from the Columns window. As a result, you cannot assign accounts, calculations, or exceptions within the Column Set Builder. However, you can add these things from the Columns window after you’ve designed your column set with the Column Set Builder.

The number of columns the The Column Set Builder can view depends on the character width of each column. You can view a maximum of 20 columns with a limited character width. However, the Column Set Builder can view only one column with a character width of 500.