I just noticed that tabs are now shown in the detailed preview in Easel. Is this something new, or have I just not noticed it before?
That’s really weird. I just went back into Easel and now not showing. I swear they were there before
Last I heard they are still working on tabs in the new preview… 
I saw this too, very briefly. It happened to be a project I was viewing in the shared projects section. It went away pretty quickly. It would be a great feature. Looking forward to seeing it come to life.