I'm developing addon that gives a student personalized version of the course that is accessible from my addon. It displays the course structure that might be different than the original one, and reuses existing modules handlers to present the course content. The problem I have is that I need to include a panel on the top of the page (under the header) that will present user with some additional information.
On the other pages I just included it in the following way:
The problem is how to include this to the other modules content handlers, e.g. page, book..., without changing core modules code or reimplementing those modules from the scratch.
Hope that somebody could give me idea what would be best approach.