Double clicking on a file in the file manager will bring up the file in the CDE dtpad editor. It runs at the command line. The main menu handles file input and output.
Output can either be to the screen or to a file.
The parameter menu controls how the sequence is printed. Type '4' in the main menu to bring up the Parameters menu. To change parameters, type the number of a parameter, and you will be prompted for a new value. When you're ready to view the sequence with the new parameters, type '0' at the prompt and '5' in the main menu to print the sequence to the screen. GPL is set to 4 so that the output line will fit on a typical 80-character line.