It sure would save time if we could really do this, though…
Security camera footage usually comes from high in corners. Please don’t just re-use normal footage when simulating a security camera. Strap a Handicam or something up in the corner and do it right. It’s just another angle.
A couple years back, I watched some ghost-pirate movie and the “security camera” footage of a murder was simply that section of the movie. Including the cuts and shot changes! It was… astonishingly horrific to watch.
Although, it did have a ghost pirate.