If you use Magefan Blog Extension for Magento 2 and need to change the layout e.g. from "2 columns with a right sidebar" to "2 columns with a left sidebar" for all blog pages, please do next:
1. Create a file
app/design/ThemeVendor/themename/Magefan_Blog/layout/blog_default.xml
2. Add the code into it
<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="2columns-left" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
</page>
3. Save the file and flush Magento 2 caches.
For the layout attribute you can use such values as:
- 1column
- 2columns-left
- 2columns-right
- 3columns
