Each list of string parameters is held on a separate worksheet. For convenience, it is useful to name these worksheets descriptively e.g. SwansGeeseDucks. The process of registering a list of string parameters creates a complementary worksheet that holds the group name of the list - in this case Swans, Geese and Ducks - and the generic classification of the analysis list - in this case Birds.
The expectation is that the creator of the lists of string parameters will want to hold all his query lists associated with a common subject (e.g. Birds) within a single Excel file. This has important control features in terms of the order in which lists are presented to the user.