The Clip Details page is different depending on what type of slide you are adjusting. To open the Clip Details page, double-tap the slide you want to adjust.

Images and Photos:

If you have selected an image, the Clip Details page will have these controls:

Videos:

If you have selected a video, you will have these controls:

Sound:

Double-tap a sound file in the sequence to open the Clip Details page. You will have these controls:

When you have finished adjusting your clip, press the back button to save your changes and return to the main screen.