First of all, check right side panel of Page and Enable Full width of Browser option and disable Title. See how to do this
Some of our demo pages have Gutenberg editor templates for Greenshift plugin and some have Elementor version.
Greenshift demo page import
If you want to use core editor version of page, make sure that you have enabled Greenshift plugin (Rehub – plugins). Then, click on Template (database) blue icon in toolbar of page, you will get access to Greenshift helpers and template library button
Next, if you use Elementor, just Click on Folder Icon and you will find library of pages and blocks
I found that sometimes, if you choose to insert Block template, you will see just empty results. This is bug of Elementor, but you can easily fix this. Simply choose something in category select and clean category selection