To deselect workspaces via the icon "Unselect all":
Activate the workspace command. For more information on how to do so, see section 9.11.1.
Go to the drawing window (see image below).
Click "Unselect all" (see the first image below). When you do so, all selected workspaces will no longer be marked in red in the model and the graphical search field (see the second image below).
