This was probably true 10 years ago! Our software coding languages and capabilities have evolved massively since then. Today, TDG does not produce any “standard” designs. NOTHING in the software is based on templates. Every single design produced by the software is unique and custom for that particular set of user inputs, and the user’s OWN design rules. The PFD, P&ID, and BIM model are generated bottom up each time a user runs a design.