press 8 to choose a video press space to add a video upload here: https://52525rr.github.io/videoencoder/ if you put a lower number of threshold and a higher frame rate, it'll take up more space, but if you choose to put a higher number of threshold and a lower frame rate, it'll take up less space meaning you can save some space. to save project, make sure none of the videos have a data of over 5 megabytes. (about 5,200,000 characters) otherwise your project will not be saved, so use the sliders for it to work.