Is there a way to moderate the conversation in a pod?

I've been using a chat pod during my events but the questions and answers from the participants can be very freeform and off-topic, so I'd like to be able to moderate them somehow. By moderate, I mean have the ability to review what's typed into the pod before it's made public in the room. Ideally, I'd also like to have the ability to append their question or delete it completely. The Q&A pod seems to offer some of this but will it do all of it and, if not, is there either an extension pod or a workflow with existing pods that would let me do this?

As a bonus, I'd also like to be able to prevent the participants from copying the entries as live type, i.e. noy copy-and-paste into their own computers.

Thanks!