The group ID (GID) of a SC4 object is the second set of eight hexadecimal alphanumeric characters making up the object's type group instance (TGI) address. As an example, in the TGI "AAAAAAAA BBBBBBBB CCCCCCCC", the sequence "BBBBBBBB" is the object's GID.
GIDs are used in SC4 to organize like or related objects. For example, all (need example) have a GID of (need example's GID).
See also: type group instance address, type ID, instance ID, hexadecimal