Secondary modules This section groups secondary modules imported by the main program module orders.4gl. Example: comutils.4glThe cimutils.4gl module defines a set of utility functions that can be reused in other programs.Example: stocklist.4glThe stocklist.4gl module defines a 'zoom' module, to let the user select a stock item from a list.Example: custlist.4glThe custlist.4gl module defines a 'zoom' module, to let the user select a customer from a list. The module could be reused for any application that requires the user to select a customer from a list.