The set properties actions allows a user to set the properties of a package during the test run. A user can set multiple properties using just the one element.
Target Package - The reference key of the package to be used.
Properties to set - The list of properties added to the element to be set.
Add - Takes the user to the add property window where they will select the property to be changed.
Edit - Takes the use user to the add property window with the focus on the selected property.
Delete - Deletes the selected property from the set editor.
In this image the variable @User::Count is having its value set to 23456.