@mghatiya Unfortunately still a pipe dream 
I get frustrated now having to open up pages that have many hidden groups especially when I’m having to jump from page to page… every time, click Elements Tree, right click “Show all Children”.
Oh crud, there’s another hidden group in there that doesn’t get shown even when I do “Show all children” on the parent group… Gotta click “Show all children” again, on the bottom group.
Once you do that 50 times a day, from page to page, it eats at you enough to where you start rethinking how you’re developing lol.
At this point, I’d take a “Show ALL” – Just a blanket, “Show ALL”. Click it, everything hidden (other than popups/floating groups) show in the editor. One button to rule them all. Heck, make it a hotkey combo.