Each workspace contains a flag that specifies whether or the names of Properties, Methods and Events of the Session object are exposed. If set, you may query/set the Properties of ⎕SE and invoke ⎕SE Methods directly as if they were variables and functions respectively. As a consequence, these names may not be used for global variables in the ⎕SE namespace. This parameter determines the default value of the flag in a CLEAR WS.
See also Expose properties of Session Namespace.