1. Go to backend -> SP Page Builder -> Pages
2. Find the content that you want to edit
3. Before edit anything MUST save one copy file
4. copy file - eg: HELP EDIT FULL WIDTH (2)
5. Save and Close - Check have copy file keep as backup -> edit
6. Click setting icon
7. Enable Fluid Row
8. Click button "APPLY"
9. Last, click button "Save" to save the page
10. Before full width
11. After full width