Some first party fields can be edited directly in the element index table view. Here's how it works.
Introduced in the first alpha of the Craft 5, it is now possible to do inline editing of entries in the table element index view.
Out of the box, you get editing capabilities for a set of first-party field types, and third-party field types can take advantage of the feature by implementing the InlineEditableFieldInterface.
The following first-party fields should be editable in the element index table view:

I am the creator of CraftQuest, a web developer, and former software team manager. I spend most of my time improving CraftQuest with code and courses. When I'm not in front of the computer, I spend my time with my family, and running on the roads and trails of Austin, TX.