Getting started with the basics of adding blocks.
Advanced Designer Version
Go to the page on your website you want to edit and on the Editor Toolbar, select Designers -> Advanced Designer option. The Advanced Designer mode is now active.
Now "Right Click" on any Column or Row, and the Add Block option appears.
Standard Designer Version
Go to the page on your website you want to edit and on the Editor Toolbar, select Designers -> Standard Designer option. The Standard Designer mode is now active.
Now click on the "Add Block" Icon when you hover over any of the blocks and the left sidebar Blocks menu appears.
Blocks are contained into different categories depending on what type of block it is. Layout Blocks contain all the Rows, Columsn & Sections to build your page layouts. Content Blocks contain various blocks for adding text, sliders, forms, & so on. Module Blocks contains blocks from each module that you can add to the page.
Once you have picked your block, click on it to be added to the page or drag it into the page to where you want to add it. Your block is now added and you can access it's settings or edit the block to change the content.