You can add or remove subtitles by prompting the magic box to do so and clicking the Generate option:
For example:
Add subtitles
Remove subtitles
You can change the position of subtitles to move the subtitles to the top, centre, or bottom. Or you can prompt to have the subtitles be at a specific position from the top or bottom!
For example: Change the Subtitle position to 30% from the top
For changing the size of the subtitles it can be anywhere between 50 to 100 by giving the below commands:
Change subtitle size to 100
Make subtitles 70
Preview your video once the changes have been made!