Peptide is an array class.
This will automatically create the Protein class object with the same name, and enter the link to the peptide with the length and checksum. View module needed for other displays. A default View is constructed automatically, but quite a lot is configurable, and configurations can be stored as named View objects, and proteins can have default and alternative views. Anything other methods need adding explicitly to the View in the View control window. This is all a bit hard-wired for our priorities, sorry.