Locinera Nitidia

I'm going to have a punt that they are like box where you gently down-tear off a young twig so as to get a "heel" cutting. This is a stem that has a little bit of the bark from the branch it was taken from, then you put it into a pot with compost so about a third is buried. Sometimes a hormone-rooting compound helps it to start producing roots. Another way might be to take a pliable stem close to the ground then gently make a little nick just into the bark on the underside. Make a small dint into the soil with a trowel then push it in and secure it with a stone or something so it doesn't come out. This is called layer-cutting.

Hello. I have a hedge of this and quite often I've found bits that I've clipped off with the shears and not collected have rooted where they landed. I've dug them up and replanted them in any gaps. So you shouldn't have any problems.