Creating Website with Hubzilla: 4. Blocks
Blocks can contain arbitrary HTML code or Text and can be embedded just like menus or widgets. For example, if you wanted to show a general "About me" section on every page, a block would do quite nicely for this.
Like menus, you create blocks from the Webpages app, and in much the same way. Click "Blocks", then click "Create".
The Block editing tool works much the same way the page creation tool does.
These blocks can then later be used in the page layout.