When I try to open bb-plugin.zip file, it shows that the zip is not valid or corrupted.
Also, I appreciate if someone can point out how to customize a site using this theme.
Hi, can you try again to download the plugin?
Alternatively, go to “Appearance > Install Plugins” then install and activate Best Builder.
Using the page builder is pretty much intuitive. When you add a page, you’ll find Page builder tab above the editor. Click Page builder tab will redirect you to the front page as seen on the Composer+ theme demo video, where you can add columns or element to your page. Click Done and Publish Changes when you done. Let me know if you have more questions.