I am trying to use the dnaseq package (documentation here: http://mirrors.linsrv.net/tex-archive/macros/latex/contrib/dnaseq/dnaseq.pdf)
Basically, it takes whatever you put between "\DNA!" and "!", organizes it in blocks of customizable length, and displays the text with a numbering on the left, starting from 1.
This package is useful for displaying easy-to-read DNA sequences, but for any reason, I would like it to start numbering from a negative number (actually my starting reference is in the middle of my sequence).
So I have to redefine the starting number to something negative. I'm not new to latex but I never tried to customize packages, this is why I request some help to :
-localize in code the variable to change (I think it's \@tempcntb=0)
-write a command to redefine this variable from my preamble (something like \def, not used to its syntax)
This package is relatively simple so I hope somebody will help me out.
Thank you anyway !