gnomegnome-shellgnome3workspaces
In Gnome Shell, is it possible to change the sequence of workspaces by using drag-and-drop?
For instance, is it possible to make Workspace 2 the uppermost one by dragging it above Workspace 1 (which currently is the uppermost one)?
Please take a look at the image to see what I mean:
gnome-tweak-tool
There is a gnome shell extension which seems to do this. It is called "Alt-Tab Current Workspace First", and can be downloaded/installed from https://extensions.gnome.org/extension/1296/alt-tab-current-workspace-first/. (However I have not tested it and I do not know whether this extension falls back to the ungrouped alt-tab from the "AlternateTab" extension)
Best Answer
Currently there is no extension that can provide this functionality. But there is one that could help you organize your workspaces if it is compatible with your version of the GNOME shell, "Workspace Grid":
https://extensions.gnome.org/extension/484/workspace-grid/