You can follow the instructions in this manual to finalize a payment for an order made through the admin.
The actions you must take are listed below:
1. Navigate to the "Orders" section in the left menu of your admin panel.
2. Select the table where the order you wish to complete the payment falls into.
3. On the top right corner select the choose option button and then pay order.
4. Select the products you want to pay for or all products of the order by checking the box next to the products.
5. Select the payment method you wish to proceed with and the employee who would be responsible for the order payment.
6. Complete the order from the top right section of your screen in order to release the table.
You have now completed a payment through the admin section.