Is there a way to show all (some) tooltips by default

[ana...@geyfman.net]

I've got a geomap, and I'd love to highlight, after load, some sections that are particularly interesting -- I'd love to pop-up a tooltip (or a shape) on top of each section. Is there a way to do this? I can pass a function into the render method, which executes after the geomap is drawn, but I'm not able to access the geomap object. Alternatively, I'd love to just put a label on each section I want to highlight. Thanks for your help, and the excellent d3plus library.