I try to developing mobile app for BlackBerry 10 So i have question: where is ToolBox to create UI or need to manualy write UI in code? I'm confused.
On the bottom left side, under Project Explorer you have Components, looks like this:
You can drag and drop from it into your QML files if you want. If it's not there go to Window -> Show View -> Components. But at least for me, manually writing is a lot faster