Procedure ClassSet; Var L1 :LongInt; Begin For L1:=1 to ClassNum do ShowClass(Classlist(L1)); {Shows all classes} HideClass('MyClassName1'); HideClass('MyClassName2'); End; Run(ClassSet);   Change the names of the classes you want hidden to something that exists in your file or delete those rows.   Or use the Saved View command to make a saved view that just changes the class visibilities.   HTH