fastq-files from several lanes

[Lien-NGSdummie]

Hi,

Great tool! I was able to get everything up and running, and will be using it a lot in the future :).
I was wondering about one practical thing: I have sequencing data divided over several lanes, and was wondering when would be the best time to merge several FASTQ files. I was thinking after the umitagging step, but would I then need to sort the merged FASTQ file again before running consolidate.py?

Thanks for any thoughts on this!