Hey Alain,
Thanks for reaching out. This is unfortunately not possible with any out-of-the-box means of our plugins, and so would unfortunately require many code customizations to implement. 🙁
So to implement the features you describe, you would have to write that custom code yourself or hire a professional developer to do it for you. We have a list of great developers here → http://m.tri.be/18k1 (and have no affiliation with any of these folks—they’re simply some well-respected names in the community that we’ve compiled to share in situations like this one).
Sorry to disappoint! Please let me know if there are any other issues or questions I can try to help with.
— George