How to use optional sidebars abd footers catch box pro?

Awesome theme. I am using it for couple of websites (1 free, 1 paid) I have a catch box pro. trying to find out that how I can I use different optional sidebars and footer on different pages and posts. I want main sidebar unchanged on all the pages but optional sidebars should appear on whatever post or page I want! is it possible? If yes please guide. If no please guide how can I use optional sidebars in that case. Just to share, I did send this question through contact page as well not able to navigate to this page. http://subodhsharma.com