Access OpenCart admin panel, go to System menu -> Design -> Layouts tab to add/delete sidebar box. The Layout tab offers variety of pages to which you can assign existing positions. Select the layout you would like to edit, for example the Contact Layout . Click the Edit icon next to it to start customization: In order to add a new module , click the “+” icon under the Module /Position/Sort Order tab . Select Module under Modules column, assign position using the Position drop-down menu and set module order in the Sort Order column: To delete modules from sidebar or any other position, click the “-“ icon. Make sure to save the changes with the Save icon in the top right corner. In case the sidebar is missing on the page, you can create one by s...