creo4 config.pro option documentation for: DM_HIDE_VIRTUAL_DEFAULT_WS 
dm_hide_virtual_default_ws
yes
, no
*
Determines whether or not to list the default workspaces of the contexts based on whether workspaces are defined for the contexts.
yes
- Does not list the default workspaces that were never used when at least a single workspace is created for any context in the selected server.
no
- Lists the default workspaces for each context that has no defined workspace.