Copy all the opportunity items into as order product using flow and process builder

I have created one opportunity with 5 products A, B, C, D, E (Using Custom Pricebook). I have also created Order related to that opportunity and one checkbox field (order_required)on order.

Use Case – On Order object If I select order_required checkbox true then all the 5 products(A, B, C, D, E) will get added to that order as an Order Item(Order product)

Are this possible using Process builder and flow?

Your help is appreciated.

Thanks in advance.