Emil,
'Deshojo' can be grown from cuttings, just as most JM cultivars can. There are a rather long list of things that must be had to be able to consistently root them, but they can and do root from cuttings. I suggest you email Brent for the specifics, as there are simply too many to list here.
Another viable, and faster option is to air-layer. Bonsai 4 Me has a good article with a JM as an example, and there are undoubtedly other articles written about airlayering as well. As well as all of this, there are several threads here about rooting JMs from cuttings and airlayering. I suggest you search for those and see what you can learn.