All the frames in Prezi come with a small toolbar that is activated when the frame is selected. Take a look at the following screenshot:
The Zoom to Frame option takes you exactly where you would expect it to. It zooms into the frame, thus allowing you easy access to edit the content. While this may sound simple, it is a very useful tool for presentations that use overlaid frames.
The Frame option is the icon in the middle of the toolbar. It provides a handy way to change the type of the selected frame. All you have to do is click to open the frame-picker menu, locate the frame you want, and then click on it. The options offered with Frame make it easy to switch frames or delete your frame without losing content: