How do copy/delete a curve segments? in Affinity on Desktop Questions (Mac and Windows) Posted 31 minutes ago The nodes are just points along the series from 1st to last that define an area. In and of themselves, only the 1st and last necessary. So copying a portion get the whole thing. If just a section is needed, duplicate the curve, and, using the node tool, break the nodes where needed. That fragments the duplicate line. The unwanted parts can be discarded.