Click and drag lol
Ctrl+click each clip, so they're highlighted, then just click and drag one. You can also click one, then go down the line and shift+click the last one to include what's between. If you need to get multiple tracks with shift+click, you have to start at a diagonal and go to the other. If the files are grouped (a video sample with audio is automatically grouped with its audio) it will take with it anything included in the group. You'll see what it'll bring if it's grouped by a thin blue outline around what's grouped to what you select. So, you don't have to worry about selecting every single file, as long as it's still grouped with the video. To make things easier, select a video clip (AND its audio) as well as a sound effect you've added, and right click to get to Grouping. Then you don't have to worry about selecting the sound effect every time you move that clip to keep it where you want it.
Poll