As elements are added to the Elements Explorer, Test Studio Dev uses an intelligent element identification scheme to auto-generate find expressions. When an element is ready to be added to the Elements Explorer, Test Studio Dev tries to use the first item in the list (usually "id"). Using this criteria, if the item is unique for the entire page, the element is added, a find expression is created, and Test Studio stops evaluating.
You can add new tags to the list, reorder or delete these (except for TextContent and TagIndex which are locked from deletion).
The list of attributes is applicable for Html elements only.