Phew, I've tried all day to figure out a good UI toying with Fungus features and learning Unity's UI engine on the fly -- haha that was not easy, but I think I'll be able to do what I want to do:

- Having a set of choices available anytime during a sequence

- Expandable menus for choices: choices will be regrouped in several categories à la Bioware's wheel with the options, especially the Investigate one (kindof)

Can't wait to dig further into that!