On a Trusted Extensions desktop, the workspaces are accessed through workspace panels at the right of the bottom panel.
Figure 1-5 Labeled Workspaces on the Panel
Each workspace has a label. You can assign the same label to several workspaces, and you can assign different labels to different workspaces. Windows that are launched in a workspace have the label of that workspace. When the window is moved to a workspace of a different label, the window retains its original label. Thus, in a multilevel session, you can arrange windows of different labels in one workspace.