Segment group

Code	Description	Version
OBRG	OBR group	from v2.4
ORCG	ORC group	from v2.4
PIDG	PID group	from v2.4
RXAG	RXA group	from v2.4
RXDG	RXD group	from v2.4
RXEG	RXE group	from v2.4
RXOG	RXO group	from v2.4
etc		from v2.4, removed after v2.4