Can I set an idle face with the Face It function?

I just got my Epix Gen2, and tried out the Face It functionality in Connect IQ. It worked fine to set a basic watch face, but I can't find a way to set the 'idle' face, i.e. what the watch looks like when I haven't turned my wrist to specifically look at the watch. The other watch faces I've downloaded all have an alternate face for when the watch is idle, but with the custom faces I've made, the watch just turns completely black when I leave it for a little while. Is there no way to set the idle face?