Click Media in the Add to your project row for free stock clips or your own videos. Add media opens in the panel: switch it to Videos, and choose Stock, Uploads or Recent underneath. Search, or narrow the stock library with Filters. Press play on a clip to preview it, or click it to add it. video only
Choosing which part plays
Click Crop on the clip's thumbnail in the panel. Drag the frame, or its corners, to choose what shows, and drag the bar underneath to choose which part of the clip plays. Click Update when you're done.
A clip plays for as long as it's on screen, set by Enter on second and Exit after second in the panel.
Size to canvas
Size to canvas has three choices. Fit keeps the whole clip in frame, Fill crops it to cover the canvas, and No leaves it at the size you placed it.
Settings
A clip takes the same Mask, Border, Shadow and Opacity % settings as a photo, and Replace swaps in another clip. Pan and zoom drifts or zooms the clip's frame while it plays, and Layer decides what sits in front — put a clip on Background to keep your text over it.