As mentioned previously, you assign line start and end locations descriptive names, and Flexcom automatically creates relevant node labels for you, which are the as the names of each line start and end location. Node labels are also assigned to intersection points between various subsections within each line if present, plus to any additional locations you define. You can then refer to these node labels when you are assigning boundary conditions, or defining nodal equivalences.
Referring again to the Steep Wave Riser example, the model will automatically have two labelled nodes, namely “Riser Start” (referring to Node 1), and “Riser End” (referring to Node 71). Typical constraints for the steep wave riser would be a pinned connection at “Riser Start”, and a built-in vessel attachment at “Riser End”. Note that while the relevant node labels are created automatically for you, it is your responsibility to assign appropriate boundary conditions to them if required.