Any docs available on brush methods?

Hi all,

I'm looking for docs about the various methods that exist for a brush. Or, at least a list. So far I've been trying to work along the existing plug-in sources, but there's only a few plug-ins yet, and a good percentage of those are dso-s only.

I'm sure with a little docs, you'd see importers / exporters / shape generators pouring out of the community.

I'd also like to know how I can place a light source, and how I can set its type. What about creating a portal brush - how to set that to be a portal?

I am working on a plug-in that allows the procedural generation of complex (portalized and lit) shapes. Any help is very much appreciated!