316810 modification for magneto

Part1: Need: Knowing the Subtotal (Total Non-taxes, Out Discounts, Shipping Out) customer orders over the month n-1 New Field in the Client Rules basket price, to apply a percentage discount based on the amount of customer orders for the month n-1 In the Frontend: In 'Account', 'My orders', to display the subtotal command month n-1 In the Backend: In 'Manage Clients',' the client ', to display the subtotal command month n-1 In 'Rules basket price', create new attribute client subtotal command month n-1 ' Ex: If the amount of the subtotal command month n-1 is greater than or equal to Euros then apply xx xx% discount on the order .... *_*_*_*_*__**_ Part 2 We would like to add 4 lines (4 quarters) in total control, allowing each line to add the amount payable on the total including tax. This amount is liable indicated in the admin in the client file, once informed owes this amount by the customer is displayed in the total of their next order. The line appears only if an amount is entered in the admin. Once the order is met, the amount is more accountable and reset the admin client file. Possibility of this additional line called These lines must also appear in the management of customer orders in the admin (facture. ..) *_*_*_*__*_*_ Please include for me your best price for this modification in your PM.