MAXSURF Modeler: Trimming (cutting) curve and surface selection changes

MAXSURF Modeler 21, Trimming surfaces and curves selection.

Information relating to changes in the way in which trimming surfaces and curves selection is now done in MAXSURF Modeler was omitted from the release note / readme.

For full details please refer to this document
http://communities.bentley.com/products/offshore/m/mediagallery/271633