When you use the option 'Change frame rate', it default fills the 'From' with the frame rate of the loaded video, but in most cases one would have loaded a subtitle based on a different frame rate, so it would make much more sense to default fill the 'To' with the frame rate of the loaded video. (I never came across a situation where I have ever needed it to be otherwise).

should be

When you use the option 'Change frame rate', it default fills the 'From' with the frame rate of the loaded video, but in most cases one would have loaded a subtitle based on a different frame rate, so it would make much more sense to default fill the 'To' with the frame rate of the loaded video. (I never came across a situation where I have ever needed it to be otherwise).