Select "multiple" Community Posts and edit them (e.g. move to another Topic)

Hi,

I'm planning to integrate our Community topics from 4 to 2, and hoping to find a way to select multiple community posts and move them to certain topic at once. 

So far I've searched related posts in Zendesk, however it only shows how to move(edit) posts one by one. Is there any way to integrate Community topics in easier way? Cannot edit all the posts one by one. 

Thanks,

Boyoon