Originally Posted by
SUCCESSOR
Maybe, if I get around to it.
You don't need to set up a subscreen for this. subscreens by default let you toggle linearly through all items. It's custom subscreens that can be a problem for this header. Other than that cycling through items isn't really so much of an issue so far as I can tell. And seems to rarely be visible. If people actually start using it in quests we might get a better idea though. Most people generally just want to have an extra button for a single constant item, from what I've seen.