/GRBEAM

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

•

beam ID

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

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

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

•	beam groups

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