If you want to use the Folio Builder panel, use InDesign CS6, InDesign CC, or InDesign CC 2014. If you use InDesign CC 2015, you won't be able to use the Folio Builder panel. InDesign CC 2015 works only with the Digital Publishing Solution (DPS 2015). Specifically, you can use the Overlays panel and export an article file. The DPS team is still working on improved preview/preflight options.