I can't change the parameters of a primitive after creating it in Blender 2.8 In Blender 2.7 you could achieve it like that: How to edit Parameters for an Object after it is created?

In Blender 2.8, when I create a cylinder for example I see the window to change the parameters of the primitive but I can't interact with it.
Try this: Top menu &gt; Edit &gt; Preferences &gt; System &gt; Enable Global Undo