You can update all settings by using this function. Batch menu will be shown by tapping Setting button.
Menu Items
Transition
All transitions will be changed.
Play time of photos
All play time of photos will be changed. (up to 10 sec)
Time of subtitles
The time of all subtitles will be changed to fit movie play time.
Font of subtitles
All font of subtitles will be changed.
Font size of subtitles
All font size of subtitles will be changed.