How to copy ALL of one Scene to another

If one uses Append and then Scene one gets a second (or …) Scene.

How to merge the two Scenes? (Such that I can delete the appended one?)

In your first scene you can select all the objects and create a group and in your second scene, the one in which you want to copy the first scene, use append with this group instead of with the scene.

Select all objects in the scene and Ctrl+L to link from one scene to another then you can delete the scene

Thanks, works perfectly …