This page demonstrates usage of sort parameter in initial alignment view
https://0-www-ncbi-nlm-nih-gov.brum.beds.ac.uk/projects/msaviewer/?url=data/YP.13.muscle.asn&sort=d:a
https://0-www-ncbi-nlm-nih-gov.brum.beds.ac.uk/projects/msaviewer/?url=data/protein.gbp&sort=o:d