would it be possible for me to edit a clip, like i would change the background for example of somebody walking... like say, the clip is of someone walking on a beach.. is it possible in vv3 to edit the clip so that the background can be changed?

would like to do this on a clip i got of my son's first steps.. would like to edit the background to effect as if he was walking in outer space or something....

can this be done?