In order to add new blocks to your post, click the +Plus icon and select the type of block you wish to add. Blocks will be divided into sections, at the top you will find the Most Used blocks:
If you scroll down, you will see the different sections in which blocks are categorized:
- Inline Elements - Inline image
- Common blocks - Paragraph, Cover, Image, Heading, Gallery, Audio, List, Quote, FIle, Video.
- Formatting - Code, Classic Editor, Custom HTML, Preformatted, Pullquote, Table, Verse.
- Layout Elements - Button, Columns, Media & Text, Page Break, Separator, Spacer, More.
- Widgets - Short Code, Archives, Categories, Latest Comments, Latest Posts.
- Embeds - Embed content from Youtube, Spotify, Facebook, Twitter, Instagram, etc.