This module is used to minify and combine assests(JS and CSS)
* Vqmod/OCMOD is required.
* Add a minify JS/CSS settings in admin whether to minify JS or CSS or not(check screenshot uploaded).
* Allow us to clear cache.
* Download the zip file and extract it.
* Keep the minify folder in your opencart under system.
* Separate documentation for all the opencart versions is added with in the zip you will download.