/GRSPRI

1.	A spring group is a set of springs (only). It can be defined by a list of:

•

spring ID

•	subsets or parts (all springs belonging to the listed subsets/parts are included)

•	submodels (all springs defined in the listed submodels are included)

•	property sets or materials (all springs having those Property Type's/MID's are included)

•	spring groups

•	a box (all springs within a defined box are included)