I've seen this new feature after update today and trying to find some information and I found English version for it. Like I could see - there's some dialogs to edit/create workspaces, but I can't reach any of this dialogs.
Here's how Context menu of sidenav looks like:

And there's no any section in settings, just a switcher to turn this on/off and some keybindings.
My version of Opera is 67.0.3575.31 (Win10x64).

]]>https://forums.opera.com/topic/38641/worspaces-are-not-configurableRSS for NodeSun, 19 Apr 2026 06:08:37 GMTFri, 28 Feb 2020 05:01:43 GMT60@leocg Thanks! Never thought there's settings too. May some settings menu item be linked to open this settings aswell?

]]>https://forums.opera.com/post/200708https://forums.opera.com/post/200708Fri, 28 Feb 2020 05:12:56 GMT@iw0rb Open the sidebar settings panel by clicking on the three dots at the bottom of the sidebar.

]]>https://forums.opera.com/post/200707https://forums.opera.com/post/200707Fri, 28 Feb 2020 05:10:09 GMT