Current versions of gnome-terminal (3.24 in Ubuntu 17.10) no longer allow you to detach and reattach tabs via drag and drop. Instead there's a context menu option that lets you detach tabs, but AFAICS there's no way to reattach them back.
Current versions of gnome-terminal (3.24 in Ubuntu 17.10) no longer allow you to detach and reattach tabs via drag and drop. Instead there's a context menu option that lets you detach tabs, but AFAICS there's no way to reattach them back.