Adding a digital catalogue to your website requires knowledge of HTML and FTP. If you are not familiair with these terms then please contact your web builder and ask them to place a link on your website.

 Yes. Please take a look at this section of the website

 Embedding a Youtube video is a technical task. If you have a webmaster around then send him or her a link of the video. If you don't have a webmaster around then this page explains you on how to do it.