Grafcet improvement.

[Alexis MARTINI <alexis martini wanadoo fr>]

Hello,

I had used Dia, it is good. But I would like to improve the Grafcet part 
because I would used it a lot in my work. I would like to know how can I 
improve this part?

So which tools do you use to make the work? (Librery, compiler ...)
Which is the last vertion for this?
Is there some persone in charge of the Grafcet diagrammes part?

Alexis