How do I work with layers of multiple layouts?

Hi,

When i did my last game i found two main troubles that maybe have been solved in the last months or i couldn't find a solution.

1) If i've already created a big amount of levels, each one on a different layout of course, and i want to add a new layer to all the layouts at the same time or just reorder the layer structure i used for all of them, how could i do it?

2) Is this: https://www.scirra.com/tutorials/594/building-a-global-user-interface-ui still the way to work with a UI layout? I usually draw them by code, but just wondering if there's a new cool way of doing it more graphically.

Thanks!

1) I don't know of a faster way to do it other than manually, so I hope your question gets a better answer than that!

2) That's still it