[NTG-context] horizontal list of sections/topics?

Hi, this is a quick question before I start coding: for my next presentation style, I would like to have a list of topics with the current topic highlighted. There are already two styles in simpleslides doing this, but this time, I'd like the list to be horizontal, at the bottom of the slide. Is there already a listalternative for this? Or is it not too complex to have a \definelistalternative do this? Or would it be easier not to rely on the list mechanism but code something from scratch? Thanks for your advice and all best Thomas