@Bas, thanks a lot for your feedback.
Yes, animation would be nice.
About the overview you’re talking about, any idea how this could be done?
Having only one topic per section, as opposed to multiple topics, really depends on your use case. If you only need simple annotations for each section, then one topic is enough. If you need, in each section, full debates on specific subjects, debates that could then be turned into votes, then you might need multiple topics. I guess this could be an admin option.
The collapsable header in the right panel is a quick hack. If done properly, the web site should have a unique fixed header (with a login button) and the two panels underneath. I did try to remove the collapse, but then the browser looks like it displays two different web sites side by side. That’s why I’ve finally opted for the - not so nice, I agree - collapsable header.