The materials we need to prepare are: computer, WPS document.
1. First, we open the WPS document to be set and click "File" in the upper left corner.
2. Then, we click "Custom Ribbon" in the opening options of the pop-up window.
3. Then in the pop-up window, we click to open "Select commands from the following locations" and select "All commands".
4. Then we drop down to find "Auto Scroll" and click Add.