@sanatisharif actually I was wrong... you can move multiple posts from a topic and create a new topic. It's actually called forking. It's under the "Topic Tools" drop down in the topic page.
I meant to reply to this a day ago, but I forgot about it. Anyways. What you can consider is using the build in reward-essentials plugin to accomplish this. Make a group, and then make a rule in the rewards for >= add to group.
