Mattia, did Taoufiq's last post get you what you needed on this one? If so, as always, do not forget to come back and use the Accept as Solution button on the post from him to give him credit for the assistance and to let other Community Members know it worked. If you are still working on things, please leave on update with what you still need.
To help users find verified answers, please do not forget to use the "Accept as Solution" button on any post(s) that helped you resolve your problem or question. I now work a compressed schedule, Tuesday, Wednesday and Thursday, so those will be the days I will reply to any follow-up posts.