To add a title click on Insert Text Titles. Format your text and press done. Your title will appear as a shot in the box below

Adjust the duration as required, then drag and drop the title into your timeline.

To add a logo, still image or video into your film, select Insert Titles, Image or Video. Use the file browser to locate the relevant file and drag and drop into the timeline in the same way. Video clips will automatically play all the way through.

N.B. it is not possible to re-edit video clips in Preview.