Help increasing the page's height

I created a new app and the page’s height seems fixed at 767px. How can I expand the size of the page to have a bigger height so I can fit more elements on the page?

Make sure that the elements do not have the ‘make this element fixed height’ checkbox checked, and that they fit to their content. Make sure that children elements are also allowed to fit to their content.

I would recommend you watch some tutorials about the New Responsive engine, which dictates the layout & behavior of your app. There are plenty on youtube. Its definitely worth the time investment. Understanding how the responsive engine works makes everything much less frustrating.