Open the page in the Sociavore page editor and select the CONTENT tab. In the Current page sidebar, click the block section you want to delete (for example Recent posts, Events, or Paragraphs of text). That opens the section settings panel. Scroll to the bottom of the panel and click the red "Remove section" button. The block is removed from the page layout and no longer appears in the preview. You can add a different section later with Add section if you change your mind.
Learn how to easily remove a pre-designed "block section" from a page