Here's how to swap your images and footage in your video:
Simply locate the image/footage you'd like to swap out or change on the editor panel on the right-hand side.
Click on the image/footage and it should open up your brand image/footage library.
Simply select the image/footage you'd like to replace it with.
TIP: Go to the Edit tab beside Library and play around with the Fit & Fill to make sure the images or footage looks good on frame!