When adding slides to the sequence, the Select position for new clip dialog will appear, depending on the settings for new slide positions set in the Options dialog. Your choices are:
Adding slides to the slider's position in the project allows you to add slides in the middle of the movie.
All slides you are adding will be inserted before slides already on the sequence.
All slides you are adding will be placed after slides already on the sequence.
See Also: Adding Blank Slides