[NTG-context] Best way to access casul fonts

Hi, I'm trying to access Lucida Casual. I see in type-imp-lucida-typeone.mkiv that there is, indeed, a typescript for it, but I can't figure out how to switch to it. That is, I want to make some text be Lucida Casual. I gather from a previous thread that I should be using \definefontstyle, but I don't know how to go about this. Currently I'm just defining a new typescript and making Lucida Casual a synonym for Serif and then using \switchtobodyfont --- but this feel silly. I searched the wiki and skimmed the reference manual, but to no avail. Perhaps I don't know what I should be looking for. Any help would be appreciated. What's the easiest way to access a casual font? What's the cleanest way? Thanks, Mattias Märka