This video simply covers the creation of the level we will be using for most of the particle videos, just in case you wanted to see how to do it yourself. Keep in mind that this video and many of the ones after are using the Content Examples project available within the UE4 Launcher Marketplace!
(00:04) - Using the Content Examples Project
(01:19) - Creating the Demo Displays

A link to the wiki for further notes is available here -