The desktop allows for multiple workspaces to organize the user's workflow. BeOS includes an implementation of virtual desktops called "Workspaces". NewTek asserts dedicating workspaces for specific tasks creates an arguably more efficient 3D production workflow. Most systems with support for workspaces provide keyboard shortcuts to switch between them. It introduced selectable auto-tiling, expanded keyboard shortcuts and workspaces management. These releases included Full Text Search, Thumbnails, DGN Indexing, Managed Workspaces, and SharePoint Web Parts. Mbone was used for shared communication such as video teleconferences or shared collaborative workspaces. The migration included all existing workspaces, documents, and sharing permissions. Calligra relies on KDE technology and is often used in combination with KDE Plasma Workspaces. Previous Plasma Workspaces releases also supported Edje gadgets and E17 modules. As such, Compiz is not usually deployed with recent Plasma Workspaces versions. A port of KDE Plasma Workspaces were developed. Some shredders designed for use in shared workspaces or department copy rooms have noise reduction. Some also offer support for also creating workspaces that behave like Smart pointer classes. The brand Plasma for the graphical workspaces has been introduced from KDE SC 4.4 onwards.