Assegnate 5 su 5 stelle

I like this add on a lot and use it fairly regularly.
It is unobtrusive and very functional.
I just wanted to know, is there some way to add more than four tabs?
What part of the code would one look at to do this?

Questa recensione riguarda una versione precedente (0.6.0.5) del componente aggiuntivo.