Posted: 13/04/2014 at 16:27
I don't think it should be a problem - I would try to grow it on as short a leg as possible, and then when it was near to reaching the maximum height you want it to be I would take out one third of the canes at the base after flowering - two or three years later take out another third and two or three years after that take out the last third. That will have rejuvenated the shrub and reduced it's overall height.
It'll then take quite some time to grow near to the optimum height again but when it does you can again coppice one third and repeat as previously.
I've not done it with Viburnums, but I don't see why it wouldn't work. Unless anybody else knows different ............ ?