How to create widgets for robohelp

I would really like to know if it's possible to create widgets of my own for Robohelp (I'm on version 10, but should update to 12 soon). I haven't been able to find any specific information on this, the only references I can find to widgets in the RoboHelp installation folder are XML files that don't have any "code" that would explain their functionality (so I'm guessing, what, DLL files actually do the work?), the documentation only talks about creating screen layouts... But at least *someone* has figured out how to create them: http://www.wvanweelden.eu/product/favorites-widget-webhelp

There's probably other ways to do what I want to do (in my case, and just right this moment, I'd like to show the title and contents of a topic in two different locations, I can't figure out any way to do this as the screen layout variables only have the project title... ugh), but if making widgets doesn't require me to install an IDE and compile stuff, I'd like to see some documentation on how to do it.