It seems counter-intuitive to me to create categories that duplicate the main sorting mechanism (Have, Used to Have, Want) but if that's the work-around I can do that. Just seemed that since we have a drop-down menu for choosing a specific genus (which I've never had occasion to use, but I'm sure the folks who are tuned into a specific plant likely do), a similar secondary sort for category would make sense. I am not a programmer, though, and will just go with whatever happens.