[Feature request] Auto internal linking will be a great add-on

Hello,
I am suggesting a new feature: that is to automatically add internal links on certain keywords it both of the following ways:
1- Admin can choose that when a certain word or words appear in content be linked to specific post.
2- The plugin would automatically insert links on any x number of words that match same number of words in another post title, i.e: If I have “internal linking is a good idea” in my content, the plugin will link “internal linking” to the most recent post that have “internal linking” in the title.

Would this be possible?