STS and Songbook

[pmaggie]

Hi all, I'm new to this forum, maybe this topic has already been treated. I browsed a little but couldn't find an answer to my question.
I own a Pa3X LE. I use very often the Songbook but I can't understand if it possible to obtain what follows:other than setting all the parameters I need for a song saved in the songbook, I would like to "create from scratch" 4 sts linked to the variations. I know how to link the sts to the variations. What I'm not able to do is to create the STS from scratch, i.e. assigning different sounds for each sts and then saving all the modified sts in the songbook

Thank you!

Paolo