In this documentation, we can check how to manage layouts in OpenCart.
1) Login to OpenCart admin panel.
2) Go to ‘System’.
3) Click the option Design >> Layouts.
4) If you want to add new layout, click the tab ‘Insert’.
5) Enter the details and click ‘Save’ button.
6) If you want to edit the details, click ‘Edit’ button.
7) If you want to delete the layout, select the layout and click ‘Delete’ button.
That is how we can manage layouts in OpenCart.
If you need any further help please reach our support department.