How can I fill in an address field with a lookup field's address field in Deluge?

I am trying to allow my user to create a job and select a customer from a lookup field. When the user selects the customer, they have the option to select a decision box "Job Address Same as Customer Address." If this value is true, the customer's address, phone number, and their name are filled in automatically in the job details. I was able to easily get the job name and job phone number filled in automatically using the following Deluge code:

input.Job_Name = input.Customer.Name;
input.Job_Phone_Number = input.Customer.Phone_Number;

However, if I try to use the same syntax for the address line, the job address does not automatically fill. I also cannot do it by each address line field because I am unable to access Customer.Billing_Address.address_line_1 because dot notation does not go that in depth in Deluge.

I could use a single line field instead, but this is not user friendly and I'm trying to avoid that. Is there any way that I can take the address from the selected lookup field and fill in the job address field.