to add a domain:start,stop,shape(1-6),color(1-4),text
to add a range: start,stop,type(0-1)
to add a site: position,type(0-1)
right click on image and select "Save Image As" to save it (png format)
ruler
http://prosite.expasy.org//cgi-bin/prosite/PSImage.cgi?hit=50,150,2_4,MY+300,400,3_2,DOM&range=100,200,1&site=320,1&len=700&hscale=1.0