'Vaadin - Is there a possibility of using overlays for my own forms?

I have an idea to making a form (in Vaadin 14 LTS)which would overlaid main layout for better user experience (like LoginOverlay). The thing is, vaadin-overlay is meant only for internal use and I presume I can't use that for my own form... Is there other way to make overlays?

Thanks in advance :)



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