Wireframe Overlay

Just easy access to wireframe overlay toogle. 

Smooth

Turn on the Viewport Display and Render Display of the Subdivision Surface modifier of the selected object. 

Also apply shade smooth to the selected objects. 

If subdivision surface modifier is not found in object, it will create one instead. 

Normal

Turn off the Viewport Display and Render Display of the Subdivision Surface modifier of the selected object

Also apply shade flat to the selected objects.

If subdivision surface modifier is not found in object, it will create one instead.