Step 1 - Create New Widget Block
Go to the "AnWP Post Grid" >> "Widget Blocks" and click "Add New" button.
Build your layout and don't forget to set items per row to 1.
Step 2 - Add widget to Sidebar
Add "Post Grid Widget Block" to your sidebar and select the previously created page.
Step 3 - Check Out widgets at frontend
Customer support service by UserEcho