The task allows to sort passed array. 

The following are "Sort Array" task properties:

Sort: defines how to sort array. Possible values are Ascending, Descending and Usage

Sort by: defines criteria to sort by an array. Use a self variable to denote a single element and then specify property(s) to to sort by. For example, self.lastName allows sorting array of contacts by last name. It is possible to specify several sorting criteria delimited by comma.

Usage History: a variable that holds usage history (applicable if sort by Usage is selected).

See also:
Array
Common Task Attributes
Task Options
Variable Types