[NTG-context] Active points on a ground plan (CD-ROM catalogue)

Hi, I'd like to make the CD-ROM catalogue (PDF) of an architectural exhibition in ConTeXt. In short the general idea is: - First you have a page with a map showing the locations of the different buildings. - Then you should point on location you are interested in and jump to the page where this particular building is described in detail. - Then again you should be able to jump back to the point (centered?) on the map where you have started. My main question now is: Is it possible in ConTeXt to locate/define on the map (one image) certain points/areas that will contain the links to respective the detail page? Thank you, Steffen