The Copy topics screen on the Admin Panel allows you to copy topics from one community to another.
When a topic is copied from one community to another, all the content within the topic is duplicated. Each item of content that is duplicated, is treated as a new item of content and is given a new content ID.
To copy a topic from one community to another:
On the Copy topics screen, in Source, select a source community from the Select community dropdown.
From the Select topic dropdown, select a source topic to copy.
In Destination, select a destination community from the Select community dropdown.
From the Select admin dropdown, select an admin to assign the topic to,
The topic is copied to the selected community.