WireframePro organizes its huge number of components into different categories called packs. By default WireframePro opens the editor with "Common Pack" that provides commonly used components for creating wireframes. Users can switch to a different pack anytime by bringing up the category listing. WireframePro includes built-in component packs for Mobile Phones, Smart Watches, Bootstrap, Annotations, Shapes, Social Buttons ..etc. with more on the way....
The switched pack is remembered and persists when the user open the project again.
To switch component category:
Category listing dialog: