We should wait until it is designed and implemented first. I don't think anyone, apart from possibly the developers, understand what the step by step process will be. I'd imagine, it's just a special transaction once in every 'recast block'.
No problem... I'll wait for the devs to explain it when everything is ready.
The whitepaper makes it sound like some action on the part of the owners of coins is necessary.
Of course in theory this process could be automated, either in a tool developed by the devs or in a tool developed by the individual owner.