This area contains several miscellaneous features for working with the Products spreadsheet. 

The Visible Columns drop-down menu provides a list of available columns for the spreadsheet. A checkmark indicates that the column is currently visible. To change the visibility of a column, select it from this list.

The Filter by Option Price Code drop-down menu provides a list of option price codes from the options in the current project. Selecting a price code from this list will filter the spreadsheet to only show products that, via their features and subfeatures, include an option with that price code.

The Filter by Product Catalogue drop-down menu provides a list of product catalogues currently in the project. Selecting a catalogue from this list will filter the spreadsheet to only show products that exist in that catalogue, selecting none will show all products.