I am looking into Odoo as a solution for a winery. We need the ability to create orders in a batch for wine club members.

Essentially, we need to select a group of customers (possibly a tag or other designator), add products to the order (preferably from selections made by the customers through a portal), apply a discount, and place a banner on their account that an order is outstanding.

Once the orders are created, the products would be allocated, but not removed from inventory.

The banner would need to be present in our POS for staff to pull up the order, verify it with the customer, make changes as necessary, then process it (inventory would be removed at this time).

I would like to know if this is a customization that could be built out using Studio (possibly modify the Quotation Template feature), or would I need to employ custom coding with an Odoo partner?