We've released Waybe 2.0, with all the neat features we mentioned below. Better tabbing, better unfolding, and new, user-controllable unfolding.
You can select an edge to be "fixed" or "broken", and Waybe will keep the edge together or take it apart as you like. There's also the ability to select a face as the "base" of a part, which means Waybe unfolds around it. These two features let you make more complex models and have them unfold exactly the way you want.