I posted an approach to using Writer’s Cafe Storyline awhile ago (see viewtopic.php?f=15&t=7132&start=0&hilit=timeline). Might be of use/interest to those who are considering WC.
Since then I have moved onto BeeDocs (very slick and due an update soon) and Aeon (best of the bunch for Scrivener-ites now that Matt is back at it). My recent 3 week excursion into Tinderbox (which has unmatched functional capabilities and an exceptional timeline feature) proved a bust due to my unwillingness to cope with its cumbersome user interface (way too much coding for my taste).