Pinnacle studio app allows such a thing. If you have a video and/or an image, you drop that on top of the main video and you get several montage options. There is an Adobe help file explaining the process. I'm just learning the GoPro to Pad to App world so my apologies if this isn't the solution you are looking for. That said, I gave Android a good go and they simply do not have the apps at this time. WIN8 RT was worse. Here's to on the trail GoPro editing with Apple!