Add Module Option Not Found Within Unity HUB

Based on my project requirements, I require to download a specific version of Unity for my project that is not listed within the Unity HUB Add section:

So I have downloaded manually Unity 2019.2.21f1 from this link:
Unity download archive

Then after I have added this manually downloaded Unity within the Unity HUB but after this, I realize that it does not contain the "Add Module" option to download other required Unity features.

Now what I require to do for download of JDK, SDK, and other platforms? Those are compatible with this particular version of the Unity.

Because my already existing Unity 2019.2.10f1 version has some JDK and SDK related issue exist so Unity Support person suggested me to upgrade with new Unity version to solve this.