When creating liveries on livery designer, I am always having to create the same decals that go on most trains. For example, the train company's logo and special door features etc. These can become quite inconsistent looking rather strange across different trains with the same livery. It would be great if we had a feature where we can save decals and apply them to different trains... Look at Forza and their livery designer, they have it so you can transfer decals and it makes it alot easier to recreate liveries. It's only a small feature but a useful one none the less.
Since the introduction of Creators Club, I rarely create liveries now but this is a brilliant (and very useful) suggestion