The tutorial deals with enabling/disabling sidebar modules in OpenCart 2.x.
You can delete or add modules to sidebars on OpenCart pages via admin panel:
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 selecting the appropriate layout under the System -> Design -> Layouts tab of OpenCart admin panel. Click the Plus icon under the Module/Position/Sort order tab. Select Column Right or Column Left in Position drop-down menu. After saving changes, your module will appear on front-end.
Feel free to check the detailed video tutorial below: