The symbol definitions retrieved from the context file specified
    in the Context File field of the main window are displayed in the
    Symbol Definitions field of this dialog box.

    Use this dialog box to add DCL symbol definitions to the
    specified context.

    The Environment Manager stores symbols only as global symbols.

    The effects of clicking on the dialog buttons are as follows:

    o  Enter Define - to add a new symbol definition to the Symbol
       Definitions list shown in the dialog box.

       Use this in a context to supersede a definition from a parent
       context.

    o  Remove - to remove the selected symbol definition or the
       DELETE SYMBOL entry from the Symbol Definitions list.

    o  Enter Delete - to add a DELETE SYMBOL entry to the Symbol
       Definitions list shown in the dialog box.

       Use this feature in a context to supersede a definition from a
       parent context.

    o  OK - to dismiss the dialog box and write changes made to the
       current context.

    o  Cancel - to dismiss the dialog box, discarding current changes
       made.

    o  Help - to bring up a help window containing text describing
       the dialog box.