Not managed to poke code, as such, but I've checked (one of) the monitored variables (ifOutOctets on the ethernet port of a router at home). Next step is to write some more methods on the SHOW gf, to generate prettier graphs (background, grid, some text, that sort of thing).

Would probably need to add a selector-thing to allow easy graphing of each of the things monitored, but taht's but a keyword away.