#	Merging output ensembles ensuring common trace headers in them

##	This is done in two steps:

# cut ensembles by evid number and merge ten of them

*call	break	trace	evid	lasttr		
merge	10	 

# however, recut again so that 'stno' (station number) is the same in the supergather

*call	break	trace	stno	lasttr