Is it possible to add or import a machine to a multi machine deployment?

Hello,

Is it possible to add a machine to an existing deployment? In the vra documentation it says that while importing machines, you can only select one deployment per VM. Let's say I have a multi machine deployment and I want to add one more machine to it. Is that possible? Or if something went wrong and I need to force unregister machines from a multi machine deployment, is there are way to re-register them under a single deployment?

Thanks,

Darrenoid