1-crop and join parts into a new segment. 2- can also have option to add subtitle. 3-hide a specific part from down just like hiding a subtitle from encoded video. 4- It should show the output size.

1-crop and join parts into a new segment. 2- can also have option to add subtitle. 3-hide a specific part from down just like hiding a subtitle from encoded video. 4- It should show the output size.