Please consider the solution proposed in bug #667245. Having a graphical representation of the workspaces on the sidebar would allow you to group launchers by workspace AND hide launchers from inactive workspaces (either when needed or at all times).
Please consider the solution proposed in bug #667245. Having a graphical representation of the workspaces on the sidebar would allow you to group launchers by workspace AND hide launchers from inactive workspaces (either when needed or at all times).