Get ready for deeper control over what users see when viewing or editing a record or opening a list. Action overrides that use Lightning components for View, New, Edit, and Tab are now supported in Lightning console apps. When a user performs an action that’s overridden with a Lightning component, the content from the custom action appears in a tab or subtab. When the split view is open, tab action overrides load the Lightning component in a split-view container that is 400-pixels wide. This feature is new in Lightning Experience.