Set the duration of the added elements on the Timeline. Once you have added the text, music, stickers or media to the template, they will appear on the timeline as a separate lines.
STEP 1. Open the Timeline by pressing on the «Pencil» button and then the «Timer» section.
STEP 2. Adjust their duration by swiping the end or beginning of the appropriate line to the right (to expand the duration) or left(to shorten the duration).