Snapshots in your dashboard can be sorted by name, status, created date, duration, visits and devices. These sort options are available in the Expanded and List views.
List view is the default view on your dashboard. To change the view to Expanded view click the left most button in the top right hand corner. The picture below shows the two buttons outlined in red.
From the List view, simply click the column titles to sort snapshots by name, status, duration, etc. You can switch the sort between ascending and descending by clicking on the same column title again. The arrow to the right of the column title indicates the sort direction.
In the Expanded view, snapshots are sorted by a sort drop down menu. Click the "Name" sort drop down menu to select the sort option. The ascending/descending button to the right of the sort drop down menu can be used to change the sort direction. This is shown in the picture below, outlined in red.