Reverse video clip editor

Works okay but its a big problem uploading clips in order by memory or hopping back and forth to folder and back to app. Its fine if you have less than 5 clips to merge but otherwise its cumbersome. I initially downloaded to try he reverse features which I haven't tried yet. I was looking for an app for an action replay last 5-20 secs effect to insert into my clips other than the expensive pro ball apps available.