Couple quick questions about Litespeed and cPanel

1. When adding Litespeed php72-php-litespeed to PHP via the Easy Apache in WHM does that also add the Apache version or is this just for something in PHP, or does need to be there for the Apache Litespeed to work with PHP?

2. How do you install just the plugin for WHM, the page only has a download link.

3. My guess is I need to install cPanel/WHM LiteSpeed AutoInstaller 1.4 (Installation guide) which then adds the plugin and the Apache version.

Thanks for any direction here.