I was using a workspace layout or 1 row and 5 columns, but with the latest update of Unity 2d , now my 5 workspaces are splited in 2 rows.
How should I revert the layout workspace back to 1 row?
Install the old GNOME panel by running the following command in a terminal:
Then start it up:
Alt+Right-Click the "desktops" panel applet (at the bottom right) and choose Preferences.
Set the number of rows to what you want. You can now uninstall the gnome-panel if you like.