Hi, I'm developing a new Video Conference-tool for our Opigno-platform by using BigBlueButton (https://drupal.org/project/bbb). I have already made all the configurations that are needed to make it work, but now I want to implement it to Opigno. I would like to make it work as one of the Course-tools (such as Lessons, Polls, Forum etc..) Can you give me some tips that which are the files that I should look into first? I was planning to use one of the existing tools as a framework and copy/modify the code from there. I quess that would be the easiest way?