As part of the continuous improvement in the SharePoint platform, Microsoft is adding more and more tools to facilitate the user experience when creating and editing new content. That’s exactly the case with the predefined section templates feature available to author modern SharePoint pages. A section template not only defines the distribution of the content (“Three columns”, “Two column vertical”, etc) but also the content to be placed. In order to start using section templates, just add a new section to the page and them click on Templates to select the section template you want to use:
Once you click on a section template, as a preconfigured section is added to the page so you only have to focus on editing the content items added. For instance, if you select “Three column image and text” you will get the following result.