Just don't bother

Pretty rubbish all round. Crashes, lags, is sticky, has pointless functionality like linking clips as you're editing, overriding your own decision making instead of just letting you push and drag consecutively. Am sure iMovie for mob was way better than this. On an Android phone it's just endlessly frustrating. In short, don't use Rush if you're in a rush. You'll be stuck in the stone age chiselling away at a mini movie for millennia.