Thanks so much for getting in touch.
I can confirm that we do not offer layers in our current editor. Right now, there are no formal plans to add layers - the focus being on keeping the product as simple as possible. We do, of course, formally track all feature requests and I have added a vote in favor of adding layers to our formal tracking.
I know that some users make managing common elements easier using Symbols - you could consider that if you’re not already doing so. There’s some help with that here:
Sorry to not have a better answer on this occasion. Please get back to me if you have any questions arising.