“Before, with the ‘Close Friends’ feature, people could only share Stories with the same list of friends without being able to edit it. With this test, you’ll be able to add, remove, or keep people on your list with different Stories.”
We can expect this new feature to offer more capacity to control the audience. Moreover, the people on the list will be there until to make any changes. In other words, it is exactly what the “Close Friends” feature allows you to do but, with enhanced capacity.
At the moment, this feature is available for a particular group of people in Brazil but will soon be launched for other users.