How do I enable "similar topics" for my community

[Gautham_Menon]

On creating a new topic, I can find that we’re able to handle “similar topics”.

Can the same as the screenshot below be achieved? Is there any bot/plug-in that with automatically share these links as a post under the topic so that a user gets notified in-case they skip over this overlay?

[HAWK]

This is native functionality - it will happen by default when you have enough content.

There is also functionality to automatically add “suggested topics” below the content of the last post. Again, that happens by default.