You can copy, move and delete objects in your template. Also you can save your layout as a module and use it in other templates.
Hover your mouse over any object in the template and three-dot button will pop-up:
Select the object and click on it to copy:
Select the object and click on it to move:
Select the object and click on it to delete:
Please note that you can not delete a single structure in the Stripe. You can only delete the entire Stripe.