Elements like this introductory text can often be hidden in the block settings
Click on this text to start editing, and enter your own text with some basic formatting. To create a link to another page or website within this section, select the text you want to make into a link and click on the Link icon on the formatting toolbar. Click anywhere outside the text box when you're done to continue working on the rest of your page.
To change the appearance of a block, such as the way in which it is laid out and the width of its columns, click on the Change Layout button on the block toolbar, to the right of each block. You can show and hide many of the elements that make up a block by clicking Block Settings on the right hand toolbar and going to the Elements tab. In Block Settings you can also change other aspects of how a block looks, including margins, colours, animations and background images.
You can change the order that blocks appear on your page using the up and down arrow buttons on the right hand toolbar, or you can drag the entire block using your mouse.
This is a Video & Text block. Click on this text to start editing and enter your own text with some basic formatting. Just click anywhere outside the text box when you're done to continue working on the rest of your page.
Hover your mouse over the video opposite to show the Video Settings button. Click on the button to open the Video Settings window where you can enter the address of a YouTube video. Just copy and paste the URL of the page on YouTube and you'll see a preview of the video straight away. Click the done button and it will be added to your page.