You can lock a workspace to prevent any actions in the workspace, such as submitting an order by accidentally clicking the mouse. When you lock a workspace, the menu bar icons are hidden, and any clicking or typing displays a Screen Locked message.
To lock a workspace, click the icon in the menu bar.
To unlock a workspace, click the icon in the menu bar of a locked workspace. You can also unlock the workspace by refreshing the workspace with the keyboard shortcut, Ctrl-R.