easy custom work on prestashop

i need to do some custom work on my prestashop webpage 1. filter by delivery hour in the order section (now i can only select the day 2. add the field other (transport or invoice) to the customer details and to the invoice 3. add to the invoice the order comment 4. add to the module "export to excel" the next fields a. delivery day (provided for the module "delivery days") b. delivery hour (provided for the module "delivery days") c. latitud (provided by the customer address) d. longitud (provided by the customer address) e. street geo name (provided by the customer address) please see the attached pictures