@greenweazle said in "Add page" feature: Can it be enabled?:

I was using Opera 48 and talking about folders residing in the bookmarks bar. From there, on top of any subfolder it used to say "Add page"

Okay, I see. Thanks for clarifying. Not sure why that was removed. Must have happened in some refactoring of the bookmark folder menu.

finding a right-click context menu entry that lets me add the current website to any bookmark folder, pretty much like I was used

Okay. glad you found something that works for you.