If I am understanding your question correctly you want to include all of your events from your first layout (Layout1) to your second layout (layout2)?
If this is what you are trying to do all you have to do is go to your Layout2 event sheet if you didn't rename it then by default it should be named (Event sheet 2). Then right click on it, and select (Include event sheet). When the new window opens just select your Layout1 event sheet (Event sheet 1), and click on OK. This will include all your events from your first layout (layout1) to your second layout (Layout2).
If you want to add sprites from your first layout (Layout1) to your second layout (Layout2). Open your (projects) window, look for your (Objects types) folder, and drag your sprites onto your (Layout2).
I hope I understood your question correctly.